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Honeywell HPA300 Air Purifier Review

Honeywell True HEPA HPA300 Air purifier with Allergen Remover can significantly increase your indoor air quality and keep you apart from allergies, asthma, and other respiratory difficulties.

It is made for Large Rooms up to 465 square feet (43 square meters), four air cleaning levels, and is equipped with powerful filters and other great features. 


  • The powerful, high CADR rating
  • Filter change indicator, timer
  • Light dimmer
  • Energy star qualified


Honeywell HPA300 Design, Size, Placement

The Control panel of the Honeywell True HEPA HPA300 Air cleaner is on the top of the unit, so it is straightforward to access it.

In front of the unit comes a large front grille where the air is sucked in. Behind the grille are the pre-filter and True-HEPA filter.

Air Purifier is quite large – height is 22.4 in (57cm), width is 20 in (51cm), but depth is 10.8 in (27cm), and it weighs 17 pounds (7.7 kg).

To carry it from one place to another, you must use both hands and side handles.

How does it work, and what sources of indoor pollution destroy?

When it comes to performance, you don’t need to worry. Honeywell HPA300 works perfectly; a pre-filter captures larger particles, but a true HEPA filter completely catches up to 99.97% of airborne allergens, 0.3 microns and more outstanding, that move through the filter.

Honeywell HPA300 easily captures smoke, pollen, pet dander, mold, and household dust.

Honeywell HPA300 Air Purifier true HEPA

Honeywell HPA300 Features

This model is allergist recommended a survey in the United Sta. It got a lot of top picks – more than any other model.

Honeywell HPA300 doesn’t have an auto mode and air quality sensor, but it has many other useful and necessary features.

  •  An automatic shut-off timer can be set for two, four, or eight hours
  • 3 air purification levels and a Turbo speed
  • Automatic filter replacement notices outside the unit when you need to change the filters.
  • Control panel light dimmer.

Honeywell HPA300 Noise level

The Honeywell True HEPA HPA300 air purifier is quiet while running at low speed, but it” very loud on the turbo setting.

It is very OK for everyday use but will be loud when you need fast cleaning. That’s normal because noise means the unit works, and airflow makes noise.

Honeywell HPA300 CADR And Coverage

Dust score: 320 CFM

Smoke score: 300 CFM

Pollen score: 300 CFM

Honeywell HPA can clean a 465 square feet large area every 12 minutes or 5 times per hour.

Air Health Skye Portable Air Purifier can handle 435 square feet, AirDoctor 3000 can cover 505 sq. ft., Alen Breathesmart Classic can clean 440 sq. ft., and IQAir HealthPro Plus Air Purifier can eliminate airborne particles in 450 sq. ft. large spaces.

Bissell AIR400 and Happi Our Happi air purifiers cover 480 square feet large area. They are also newer models and has more features than Honeywell air purifier.

Honeywell HPA300 Maintenance and upkeep

Like many other air purifier manufacturers, Honeywell recommends cleaning air purifiers every 3 months. First, clean the unit with a dry cloth to wipe the outside surfaces of the air purifier. Remember not to use water.

This Pre-Filter needs to be replaced every three months. To change the pre-filter, you need to open the front cover – super easy. 

The true-HEPA filter needs to be replaced once a year. No tools are required to change the filter.

If you don’t clean air purifiers frequently or forget about the filters change, the unit will make you know about that starting to run louder.

The unit is energy-star qualified; it uses 129 watts of energy on the turbo setting and only 42w on the low setting. That’s less than most of the electronic devices in your home.


Overall Honeywell HPA300 air purifier is an excellent unit for general air cleaning for those who suffer from allergies.

Many specialists call this unit Allergen Remover. I have to agree. The air purifier covers a large space and captures most airborne pollutants; it doesn’t require magnificent maintenance.

Honeywell HPA300 is one of the market’s best and most affordable units.

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