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.