Best Air Purifiers for Allergies and Asthma Review 2020

If you are looking for the best air purifier for allergies or are wanting to get the best air purifier for asthma, then your search is over. There are many great options to choose from but when you want the best of the best, you need to find the brands and products that more people trust. That is exactly what we are presenting to you here today!

Air Purifier for Allergies and Asthma

Most people who suffer from allergies also suffer from some degree of asthma as well. So when searching for the right air purifier, it is often necessary to find ones that are designed to clean the air well and that are targeted for individuals with allergies as well as asthma.

Severe allergies can trigger asthmatic symptoms and prolonged asthma attacks can cause allergy symptoms to be compounded as well. So the best way to treat both conditions it to keep the air clean, and this is where air filters come in.

Key Features to look out for when buying an Air Purifier

  • Our checklist includes when choosing an air purifier.

    – Price range: It depends on how much you want to invest in a suitable air purifier

    –  Filtration system: The different types of filters or other air purification systems used in an air purifier.

    –  Filter replacement indicator: Some air purifiers have indicators which notify you when you need to replace the filter specifically for the HEPA filter as it cannot be cleaned and reused.

    –  Air quality indicator: Some air purifiers have indicators which notify you of the air quality.

    – Noise level: Air purifiers have different motor speeds which could get noisy especially if you want in on during the night whilst sleeping and something you should take into consideration.  Measured in decibels.

    – Coverage area: It is the square feet for air an air purifier can effectively filter

    – Clean Air Delivery Rate (CADR): Indicates the number of  tobacco smoke, pollen and dust an air purifier can remove in a certain area.  Tests performed by the Association of Home Appliance Manufacturers (AHAM).

    Cubic feet per minute (CFM) : How many cubic feet per minute this air purifier can filter  this measures the air purification efficiency of the air purifier.

    – Fan Speeds: This gives you the ability to s time to filter the air for example when there is cigarette smoke in the air and you want to get rid of the odor. Turn down the speed for when you sleeping and want the noise level as low as possible.

    – Item Dimensions: The width, length and height of the air purifier and how it fits in the room.

    – Power Consumption: How much electricity the air purifier uses and what wattage it is suitable for.

    – Warranty: You warranty this is primarily for the motor of the air purifier since you may be leaving the air purifier on for long periods, you want your motor to be of great quality.  And not die in 2 or 3 years of use.

    Other features which manufacturers add to air purifiers

    Unique features: Some air purifiers have UV lights, ion generators, eco modes, specifically designed HEPA filters and other features such as interchangeable covers.

    Types of Air purifier filtration systems

    Common air filtration system

    Unusual air filtration system

    True  High Efficiency Particulate Air Filter (HEPA)
    Pre Mesh Filter
    Active carbon filter
    UV-C light
    Air ionizer
    PhotoElectroChemical Oxidation  (PECO)
    PhotoCatalytic Oxidation (PCO)
    Titanium dioxide (TiO2)
    Ozone generators (O3)
    Electrostatic precipitators
    Thermodynamic Sterilization (TSS)
    Oxygen Plus Technology

    More information on Air purifier filtration systems


Types of Allergies From Airborne Particles

It is possible to control indoor allergens and therefore reduce the airborne particles that can cause your allergy and asthma symptoms. The easiest way to do this is with cleaning and reducing allergens in your home. If you can keep them from getting kicked up into the air in the first place, you can reduce your allergy and asthma symptoms. The main sources of indoor allergens that are most commonly seen today are:

Pet dander and fur: are among the most common allergy triggers found in the air in homes today

Carpet:  carpet fibers can trap all manner of allergens in them and can be triggers in and of themselves

Soft furniture:  sofas and recliners are bad about hold skin cells, pet dander and dust for a long time

Smoking:  smoke has a bad habit of getting into every porous surface and can linger for months

Stuffed toys:  teddy bears and the like can harbor dust mites, pet fur, and other allergens as well

Closets:  areas that are not access often like storage closets often have a lot of dust and mold

Damp areas:  kitchens and bathrooms can be a breeding ground for allergy and asthma causing mold

Indoor plants:  some can clean the air but the dirt often is a breeding ground for mold and pollen

Mattresses :  mattresses trap all manner of allergens such as skin cells, dust mites, dust, pollen, etc

Pillows: like the mattress pillows can also trap many of the top allergy and asthma triggers easily

Bedding:  if you don’t wash them often your sheets and blankets can trap allergens each night too

There may be more allergens on surfaces than in the air. Surface allergens enter the air easily when you disturb them by dusting or sitting. So it becomes a vicious cycle of air to surfaces back to air again.

 Common Allergy Symptoms of  Allergies

– Stuffy or runny nose
– Sneezing and post nasal drip
– Sore and scratchy throat
– Watery and itchy eyes
– Difficulty breathing
– Cough or chest congestion
– Skin irritation or rash

By using quality air purifiers in your home or office, you can remove the vast majority of all the common allergens from the air, thus improving your overall health and reducing the severity of your asthma or allergy flare ups. If you have been searching for the best air purifier to use in your home or office, we are happy to present to you our findings on the three best units, specifically designed for individuals who struggle with allergies and asthma!

Best Air Purifiers for Those With Allergies and Asthma

  • Dyson Pure Hot+Cool Review

    Dyson Pure Hot + Cool Link​

    Air Purifier




    Dyson Pure Hot + Cool Link​

    The Dyson Pure Hot + Cool Link is one of the most sort after air purifiers, with the technology Dyson is famous for with their other products. First and for most this, air purifier can cool and heat the filtered air with it’s high quality HEPA filter which removes 99.97% of allergens and the multiple filter layers remove pollutants as small as 0.3 microns cleaning the air of common allergens such as pollen, dust, mold spores, bacteria and pet dander. It is designed to be quiet and safe with no blade or moving parts to worry about. It comes with a remote control, an mobile app to monitor the air and control the device. Above all the air quality indicator is a lot more sophisticated than it’s rivals. Watch the video to see the other feature this device has to offer.

    Dyson Pure Hot + Cool Link Features  & Specifications

    Filtration System 2 Stage: HEPA and Active carbon
    Item Dimensions 8.7 x 6 x 24.9 inches
    Coverage Area sq ft Approx. 500sq ft
    Air Quality Indicator Yes
    Filter Replacement Indicator Yes
    Noise Levels in dB 40 –  58 dB
    Fan Speeds Up to 8 speed settings
    Power Consumption High with the heating functionality
    CADR Scores  N/A  N/A  N/A
    5 air changes per hour
    Warranty 2 Years
    Pros Cons
    – Advanced technology
    – Has cooling features as well as heating features
    – Amazing and compact design
    – Has auto mode, sleep timer, Night-time mode
    – Remote control and mobile app
    – 350˚ oscillation
    – Web app to control and monitor air
    – Expensive for the coverage provided
    – No prefilter
  • IQAir HealthPro® 250 Review

    IQAir HealthPro® 250

    Air Purifier



    IQAir HealthPro® 250

    The multiple award winning IQAir HealthPro series air purifer you get greater than 99.5% removal for particles less than or equal to 0.003 – 1.00 microns that is 100 types smaller that the True HEPA filters. With advanced medical grade filtration, you can also remove germs and other toxins and find particles from the air that other filters are not able to clean away. Quiet operation makes it perfect for home or office use.
    The HealthPro series filters: nitrogen dioxide, PM 2.5, PM10, gases and chemicals,  pollen, mold spores, pet dander and dust allergens. Developed and manufactured in Switzerland you know you are dealing with quality and efficiency. Considered the most trusted and relied on air purifier worldwide.

    IQAir HealthPro® 250 Features & Specifications

    Filtration System HyperHEPA and  V5-Cell Wide Spectrum Gas and Odour  Carbon Filter
    Item Dimensions 8.7 x 6 x 24.9 inches
    Coverage Area sq ft Approx. 500sq ft
    Air Quality Indicator No
    Filter Replacement Indicator Yes
    Noise Levels in dB  25 – 59  dB
    Fan Speeds Up to 6 speed settings
    Power Consumption 57 W
    CADR Scores IQAir does not consider CADR to be a valid methodology for evaluating air purifiers.
    Warranty 1 / 2 /10 Year
    Pre-Filter: 12-18 months
    V5 Filter: 12-18 months
    HyperHEPA Filter: 3-4 years
    Pros Cons
    – Hyper HEPA filter 0.003 microns
    – Advanced carbon filtration system
    – Reduced noise levels
    – Advanced timer
    – Remote control and mobile app
    – 320˚ air outlet
    – Remote control
    – Longer lasting filters
    – Bulky looking
    – Heavy
    – No air quality indicator

    IQAir HealthPro 250 Design and Features

    The IQAir HealthPro 250 comes with a simple but effective design. The modular design is somewhat bland, but it does make it easier to replace filters. The exterior of the device is made up with ABS plastic with air filters stacked together. There is the PreMax filter at the bottom, then the motor fan, then the V5-Cell filter, and then the HyperHEPA filter on top.

    It’s a bit on the bulky side weighing in at around 16kgs. That makes it difficult to move around, but it does have wheels and a handle that help with this. The machine is held together by two clamps on either side of the purifier. One of the clamps has a small display and the buttons used to operate the device.


    Given that the air purifier uses a HEPA filter, it can be expected to absorb and eliminate up to 99.97% of particles of 0.3 microns or more. To give you an example of how small that is, 1 micron would be the size of around 1/100th the width of a human hair.

    As mentioned earlier, the purifier features a modular design with three air filters built in. The first filter at the bottom is an F8 PreMax Filter. The air passes through this filter first and large particles are removed before passing on to the other filters.

    The second filter is the V5-Cell MG filter. Don’t let the complicated name throw you off. This is basically IQAir’s answer to the activated carbon filter usually seen with these air purifiers. The V5-Cell is a MultiGas filter that has a 2.5kg mixture of activated carbon and impregnated alumina to eliminate odors. This mixture makes it more powerful than the average activated carbon filter.

    Finally, there’s the hospital-grade Class H12/H13 HEPA filter. Filters of this quality are used in the most demanding places like hospitals. They are extremely efficient and can remove even the tiniest particles. The filter comes equipped with the proprietary HyperHEPA technology. The company say that their advanced filter can catch particles all the way down to 0.003 microns.

    The IQAir HealthPro 250 air purifier is a powerful device that delivers on all the claims it makes. While it does come with an expensive price tag compared to other purifiers, it delivers value for money given how powerful it is. If you have breathing problems or allergies and want to get relief, then this could be an excellent choice. It eliminates pollutants, irritants, and allergens to ensure you breathe nothing but clean and pure air.

  • Rabbit Air MinusA2 Review

    Rabbit Air MinusA2

    Air Purifier



    Rabbit Air MinusA2

    This is an air purifier that is a contender for the best purifier of 2019. Rabbit Air is a trusted brand of over a decade, and the MinusA2 is an air purifier that has a practically perfect filtration system, has a plethora of smart features, and is easily a high-end machine. 
    There are 3 variants of the MinusA2 – SPA-700a, which covers up to 700 square feet; SPA-780A, and SPA-780N, both of which cover up to 815 square feet, but the second one comes with Wi-Fi. Each variant is solidly built, as it’s made out of metal, and it has an LED panel that shows if it’s on or off.

    It has a simple and sleek design, and it’s only 7 inches in-depth, so you can easily save space by mounting it up on a wall. The MinusA2 has a six-stage filtration process, which means it’ll work wonders for eliminating spores, allergens, and improving the overall air quality. Its filters eliminate both smaller and larger particles, as one of them is a true HEPA filter, and you can even customize the filters if you want to focus on specific particles.

    One important feature of every air purifier is the ACH, which is air changes per hour. The MinusA2 can change the air in the room up to 4 times, which is recommended for people with severe allergies, while it’s recommended 2 times per hour for those without. That means you can set your purifier to change the air every 15 minutes, and with favorable CADR scores, this makes the MinusA2 a very potent purifier. 

    Rabbit Air MinusA2 Features & Specifications 

    Filtration System 5 Stage +ion Pre-filter, medium filter, BioGS HEPA, Customized filter,   Active carbon, optional Negative Ions
    Item Dimensions 20 x 21.4 x 7 inches
    Coverage Area sq ft up to 815
    Air Quality Indicator Yes
    Filter Replacement Indicator Yes
    Noise Levels in dB  25.6 – 61.3  dB
    Fan Speeds 5 speed settings
    Power Consumption 7-61W

    CADR Scores


    Smoke: 200
    Pollen: 208
    Dust: 200
    5 air changes per hour
    Warranty 5 Year
    Pros Cons

    – Excellent high-grade true HEPA filter

    – Perfect filtration process

    – Sleek design

    – Wall-mountable

    – More than satisfactory performance

    – Significantly pricey
    – Wi-Fi and Android support for only one variant of model
    – No timer control

    Arguably, the biggest con for the MinusA2 is its price, but that’s perfectly offset with the purifier’s excellent performance. It’s not cheap by any means, as the cheapest variant is $549, and the larger ones get even more expensive, but it’s a perfectly high-end luxury machine that works like a charm.

    Air Quality Indicator – this is an indicator that gets a reading from the sensors to show how many contaminants you have in the air. 
    Filter Replacement Indicators – when it’s time to change your filters this indicator will flash a light. 
    Filtration system – this is a system that protects against germs, allergies from pets, toxins, and odors. 
    Particles removal – removes odors, allergens, cigar smoke, cooking smell, and mildew. Designed to keep the room fresh at all times. 
    Special Features: Remote control for fan speed, changing modes, and mood lights; mobile app for the Wi-Fi enabled model.

  • Winix 5500-2 Review

    Winix 5500-2

    Air Purifier


    The Winix 5500-2 is one of the best air purifiers to come from the Korean company Winix. It comes with a great design.

    The filter has a plastic body and is available in a luxurious black color.

    This sets it apart from the previous generation Winix 5300-2.

    Given that air purifiers have to be kept plugged in all day for best results, it’s better to make them from plastic rather than metal. Don’t worry about the build quality though. Winix choose the best materials and the best manufacturing process for the job.

    Winix 5500-2 Features & Specifications

    Filtration System 4 Stage:Pre-filter, Carbon filter, True HEPA filter, PlasmaWave Technology
    Item Dimensions 23.6 x 14.9 x 7.8  inches
    Coverage Area sq ft  360
    Air Quality Indicator  Yes
    Filter Replacement Indicator  Yes
    Noise Levels in dB  27.8 – 54.8 dB
    Fan Speeds  4 –  Quite, Medium, High, Turbo
    Power Consumption  6- 65 W

    CADR Scores


    Dust: 243
    Smoke: 232
    Pollen: 246
    246 CFM
    Warranty  1  Year
    Pros Cons

    – 1 /4 /8 hour timer
    – Plasmawave
    – Auto adjust mode
    – Quiet on lower settings
    – Smart sensors
    – Remote control

    – Highest setting can get loud
    – 1 Year Warranty

    Winix 5500-2 Design

    The front of the filter features five function buttons. These buttons are much easier to press than with the previous Winix WAC9500.

    The Winix also comes with an LED smart sensor that has three different colors.
    The different colors correspond to different levels of air quality, so the light lets you know what the quality of air is like in the room at the time.
    There is also an intake grill on the front of the filter. This is where the air passes through ready to be filtered.

    Winix 5500-2 Filters

    Winix always uses the latest technology with their products and the 5500-2 is no exception. The filter uses a 4-stage air purification process that combines all of the best of Winix technology to keep the air in your home clean. Sadly, it doesn’t have the same range of filters as the Winix WAC9500, but you can still expect a pre-filter, a true HEPA filter, and the Winix PlasmaWave filter.


    The pre-filter helps to capture large contaminant particles including pet dander, pet hair, pollen, and dust. This pre-filter can be removed and washed and reused for quite some time.

    Activated Carbon Filter
    The Washable Advanced Odor Control (AOCTM) Carbon Filter carbon remove odors as well as protect against VOCs. 

    True HEPA Filter 
    As mentioned before, a true HEPA filter captures 99.97% of all particles down to 0.3 microns. This includes allergens, pollen, mold, virus particles, and fungi particles, and dust. They also help with odors including smoke odors, mold odors, and the smells of cooking. The true HEPA filter can’t be washed and has to be replaced on a regular basis.

    Winix PlasmaWave

    The PlasmaWave is a kind of ionizer. Ionizers improve the effectiveness of these filters and eliminates more contaminants. It can be turned off and on as you need it.

    Winix 5500-2 Extra Features

    The Winix 5500-2 has been around for a while now so there’s not much in the way of extra features. Similar to other air filters from the Winix brand, it comes with a great Smart Sensor that detects the current air quality. This feature adjusts the fan speed according to real-time data on air quality to save energy. Running a filter all the time is great for your allergies, but not so much for your energy bills.

    The air purifier also comes with a remote control for ease of use. It’s not a massive feature, but it’s sure to be appreciated by some users. 
    It also comes with an LED life indicator that tracks the air filter health. 

    It alerts you to when it is time to get a new filter for the purifier


  • Blueair Classic 480i Review

    Blueair Classic 480i

    Air Purifier



    Blueair Classic 480i

    Anyone can benefit from having an air purifier in their homes.
    The Classic 480i has the option for a particle filter or for their Smokestop filter filtering up to 99.97% of harmful particles and (VOCs) volatile organic compounds. With it’s advanced HEPA filter with the electrostatic and mechanical filtration system. It boasts multiple functions such as: on/off function, fan speed, child lock, indoor and outdoor air quality with recommendations on the air filtration required,  with its wifi connected mobile app.
    Let’s take a look at what sets this air purifier apart with our Blueair Classic 480i review.

    Blueair Classic 480i Features & Specifications

    Filtration System 2 Stage:  HEPA filter and Carbon filter
    Item Dimensions 23 x 20 x 11 inches
    Coverage Area sq ft  434
    Air Quality Indicator  Yes
    Filter Replacement Indicator  Yes
    Noise Levels in dB  32 -52 dB
    Fan Speeds  1, 2, 3
    Power Consumption  15 – 90 W
    CADR Scores


    Dust: 300
    Smoke: 280
    Pollen: 300
    5 air changes per hour
    Warranty  1-5 Years
    Pros Cons
    – Smart mobile app features
    – Remote control  via mobile app
    – Timer control  via mobile app
    – Wi-Fi enabled
    – High asking price
    – Bulky
    – Noisy on high settings

    Blueair Classic 480i Design

    The Blueair Classic 480i features a similar design to earlier models from Blueair, such as the Classic 405. It’s 23 inches high and 20 inches wide, which puts it in the medium-size category. The purifier features an air grill on either side. It’s just as welcome here as it was with the 405. The design optimizes the air flow through the purifier and makes the machine as a whole more efficient.
    One thing that does set the Blueair Classic 480i apart from the previous models is the new digital control panel. This includes a button for the auto smart sensor mode as well as two indicators that show the levels of VOC and PM 2.5 in the room.
    The air purifier is made from a durable steel and the bulky design means it weighs in at around 33lbs. It can become difficult to move it around because of this. The good news is that there is the option to have caster wheels installed on the purifier. It makes the Blueair Classic 480i much more mobile.

    Blueair Classic 480i Filters

    The only way to properly assess the quality and ability of an air purifier is to look at the quality of the air filters. The amount of types of air filters is also important. This machine ranks among the best for the quality of the air filters used.
    The main filter is the particle filter. This filter uses a true HEPA filter to capture up to 99.97% of allergens including dust, pollen, pet dander, bacteria, and viruses down to just 0.1 microns. If you need something extra, then you can purchase the SmokeStop filter. This filter is a combination of the True HEPA filter and an Activated Carbon Filter. Activated Carbon filters pull odors and gasses out of the air to leave your home smelling better.
    Like other Blueair air purifiers, the Classic 480i uses the proprietary HEPASilent technology. This technology helps to prevent clogging and prevent particles from being released back into the atmosphere. It uses electrostatic cling to charge particles before releasing them, eliminating up to 99.97% of microns from 0.1 microns.


    The Classic 480i is a fine upgrade to the older Classic 405. It has improved sensors and improved filters. If you don’t have an older Classic, or indeed any kind of air purifier at all, then this would be an excellent choice. It’s got everything you need for pure and clean air.

  • Alen BreatheSmart Classic Review

    Alen BreatheSmart Classic

    Air Purifier

    Alen BreatheSmart Classic

    This air purifier comes with 4, adjustable, true HEPA filters, smart sensors for changing weather and Alen’s lifetime guarantee. Presently, HEPA is regarded as the best air filter for a dusty house.
    With the filtration Alen corp claims removes 99% of particles greater than 0.3 microns

    With a 35% increase in overall capacity, this machine is a significant development from its preceding models
    It comes in an array of 13 customizable designer panel colors.
    The specialized Filters exclusive to Alen are:
    HEPA-PURE: The standard filter. Great for dust & allergens
    HEPA-SILVER: All-around solution. Best for mold, germs & asthma
    HEPA-FRESHPLUS: Chemical filter. Good for smoke, VOCs and heavier chemicals
    HEPA-ODORCELL: Odor neutralizer. Perfect for pet & diaper odor

    Alen BreatheSmart Classic Features & Specifications

    Filtration System 1 Stage with specialized filters: Pre-filter   HEPA-PURE | HEPA-SILVER | HEPA-FRESHPLUS | HEPA-ODORCELL and optional Ionizer
    Item Dimensions 17.75  x 26.75  x 10  inches
    Coverage Area sq ft  1100
    Air Quality Indicator  Yes
    Filter Replacement Indicator  Yes
    Noise Levels in dB 41.5 – 56 dB with Pink Noise  which aids in resting
    Fan Speeds  4 –  1, 2, 3, Turbo
    Power Consumption Maximum 105 W
    CADR Scores
    Not participated in these tests
    300 CFM
    Warranty  Lifetime
    Pros Cons
    –  Lifetime  Warranty
    –  Customizable covers
    – Large Coverage Area
    – Customizable Filters for specific issues
    – Sleep Mode & Air quality feedback light
    – Optional Ionizer control
    – Light weight at 21 lbs
    – No True HEPA filter
    – Expensive air filter replacement cost
    – No remote

    Alen BreatheSmart Classic Design

    The Alen BreathSmart excels in its design, with the dimensions of 75 x 26.75 x 10 inch, the 13 different covers you can chose from to suite the room you have chosen it for.

    Alen BreatheSmart Classic Filters

    The Alen BreatheSmart Classic features specialized filters for specific air purification needs they have developed these:

    HEPA-PURE: Our standard filter. Great for dust & allergens

    HEPA-SILVER: All-around solution. Best for mold, germs & asthma

    HEPA-FRESHPLUS: Chemical filter. Good for smoke, VOCs and heavier chemicals

    HEPA-ODORCELL: Odor neutralizer. Perfect for pet & diaper odor

    Ionize: Emitting negatively charged ions into the air to neutralize pollutants in the air. This feature has on and off controls

    Alen BreatheSmart Classic Coverage

    Alen BreatheSmart Classic is designed for large rooms. suitable for rooms up to 1100 square feet, and with the great design and covers makes a great feature for any room be it the lounge, kitchen, living room, dining room or bedroom.

    Alen BreatheSmart Classic Extra Features

    One of thee features is that it generates a soothing white, pink, red noise that covers sounds for a peaceful environment and sleep.
    It also features a Child-friendly lock for both the control panel and the vent guard making this air cleaner a create choice for a kids room. With the added feature of the pink noise for a great night sleep.

    It has a lights off mode for night time operation a great air cleaner for a bedroom.

    A Smart control panel indicates the quality of the air with the blue, orange, red indicator, it has auto mode and timer again great for night time operation.
    It also is Energy Star Certified consuming only  105 watts on highest speed.
    Being only  21 lbs it makes it very portable, and easy to move from one room to the over.

    Alen BreatheSmart Classic Sound

    Alen claims the Classic to be whisper quite with the settings at:
    Speed 1 41.5 dB (whisper);
    Speed 2: 44 dB (light rainfall);
    Speed 3: 50 dB (heavy rainfall);
    Turbo: 56 dB (box fan, medium)

  • Honeywell HPA300 Review

    Honeywell HPA 300

    Air Purifier



    Honeywell HPA 300

    If you’re looking for a good quality brand-name air purifier then you’ll likely run into the name Honeywell at some point. They are one of the biggest names in the business, and the Honeywell HPA 300 is another fine example of how they earned that top spot.
    The Honeywell HPA300 is a solid air purifier if you’re looking for something to help with allergies and asthma. It does have a few flaws – such as the lack of smart features and the potential noise issue – but it’s still an excellent choice.
    Honeywell is one of the most trusted names in the industry, and air purifiers like the Honeywell HPA300 showcase why that is. An American company

    Honeywell HPA 300 Features & Specifications

    Filtration System 3 Stage:  Pre-filter, Carbon filter & True HEPA filter
    Item Dimensions 20 x 10.8 x 22.3  inches
    Coverage Area sq ft  465
    Air Quality Indicator  No
    Filter Replacement Indicator  Yes
    Noise Levels in dB Max 63 dB
    Fan Speeds  4 –  1, 2, 3 & Turbo with an auto-off timer
    Power Consumption 40 – 127 W
    CADR Scores


    Dust: 320
    Smoke: 300
    Pollen: 300
    510 CFM
    Warranty  5  Year
    Pros Cons
    – Automatic shut-off timer, 2, 4 or 8 hours
    – Value for money
    – Large Coverage Area
    – Amazing fan power
    – 5 Year limited warranty
    – Control panel lighting adjusting  bright, dim, off
    – Highest setting can get loud
    – Sometimes gives off a bad smell
    – No remote

    Honeywell HPA300 Design

    If you’ve seen one Honeywell air purifier you’ve likely seen them all. Honeywell settled on their signature design quite some time ago. It would be nice to get some variety but if it ain’t broke don’t fox it. It comes with a metal body design complete with rounded edges and a full-body intake that absorbs air from a full 360 degrees. The Honeywell HPA 300 is sturdy and has a large fan built in.

    The air purifier is controlled from the top with buttons, similar to other air purifiers. It has two LED indicators that let you know when it’s time to replace the HEPA filter and the pre-filter. There’s an outlet grill too, which is another common feature with air purifiers.

    The air purifier is built with handles on each side to carry it. It weighs in at around 21 pounds, putting it on the heavier side of things. It can be difficult to move it between rooms. It’s also 22 inches high and 21 inches wide, making it too big for a small room. There’s a lot of great choices out there for small room air purifiers, but this isn’t one of them.

    Honeywell HPA300 Filters

    The Honeywell HPA300 features a powerful air purifier powered by a True HEPA filter. This is hardly a surprise for an air purifier in this price range, but what is surprising is the top quality of the filters. Here’s how it breaks down.


    The pre-filter has a built-in activated carbon filter. This helps I to eliminate VOCs, odors, and gasses – as well as trap large particles. The downside is that it needs to be replaced regularly, at least once every three months. These replacements can be expensive too, which is another knock against the air purifier.

    Activated carbon Filter

    Activated carbon pre-filter  which absorbs VOCs/Gases/Odors and traps larger particles.

    True HEPA Filter

    A true HEPA filter is the heart of every good air purifier. This filter can capture up to 99.97% of all particles as small as 0.3 microns. This includes mold, bacteria, pollen, viruses, and pet dander. To give you an idea of how small 0.3 microns is, 1 micron is equal to 1/100th the width of a human hair. This air purifier removes just about everything from the air to leave behind nothing but pure and clean air.

    Honeywell have always understood the value of a true HEPA filter and have included them in all of their air filters. What sets this one apart is the technology that helps to power it and ensure that it performs at its peak. The True HEPA filter included here is far more powerful than any other purifier in this price range.

    Honeywell HPA300 Room Coverage

    The Honeywell HPA300 is designed for large rooms. It offers up to 465 square feet of room coverage. This is a particularly large amount of coverage, especially compared to the competition. Many other air purifiers in this price range struggle to cover even half of that. Honeywell have always made air purifiers that can cover the most room. For example, the Honeywell 50250 is able to cover 390 square feet.

    Honeywell HPA300 Extra Features

    One thing that is clearly missing from this model is a smart sensor. It’s something that Honeywell generally reserves for their newer and more modern devices. There’s only basic settings to be found here. You can set it to a timer for 2 hours, 4 hours, and 8 hours. It comes with three fan modes built in too; Allergen, Germ, and General Clean.

    One extra feature that the purifier does have is a turbo mode. This mode can be used for fast and effective cleaning in a hurry. Just take note that this sets the fan to the maximum possible level. It can make a lot of noise and use up a lot of power. Only use this setting if allergens get out of control.

    There’s also a light dimmer setting built into the air purifier. Last but not least is the electronic filter replacement reminders. The sensors track the quality of the air filter and remind you when it’s time to buy a replacement. Pretty handy to have given that a filter can last for up to three months.

    Honeywell HPA300 Sound

    It’s worth bringing attention to the sound generated by the air purifier because it is one of the more disappointing aspects of it. With such a powerful fan behind it, it was obvious that this was going to generate more noise than the average air purifier. Perhaps they should have included a silent running mode as well as a turbo mode. Some people have complained that the purifier is too loud, but everyone has their own tolerance levels.

Alen BreatheSmart-FLEX  Specifications

If you are looking for the best air purifier for allergies or are wanting an air filtration system to clean out pollen, dust, mold spore, dander, germs, toxic fumes, and other pollutants out of your home then these three air filters are a great place to start. There are many great options to choose from but when you want the best of the best, you need to find the brands and products that more people trust.

That is exactly what we have presented here for you!

Air Purifier for Allergies and Asthma Comparison Table