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Honeywell HPA300 Air Purifier Review

Honeywell HPA300 Air Purifier Review

Honeywell True HEPA HPA300 Air purifier Review
Honeywell HPA300 True HEPA Whole Room Allergen Remover Air Purifier

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. Confirmed for Large Rooms up to 465 square feet (43 square meters), 4 air cleaning levels, equipped with powerful filters and other great features. 


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


  • No auto mode, no air quality sensor
  • Quite a big size

Honeywell HPA300 Design, size, placement

The Control panel of the Honeywell True HEPA HPA300 Air purifier 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 being 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 will need to use both hands and side handles.

How it works 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 greater, that move through the filter. Honeywell HPA300 easily captures smoke, pollen, pet dander, mold, so, res, and more 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.

  •  Automatic shut-off timer can be set on two, four, or eight hours
  • 3 air purification levels and a Turbo speed
  • Automatic filter replacement notices on the outside of 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 very quiet while running at low speed, but it” very loud on the turbo setting. It is very OK for everyday use, but when you need fast cleaning, it will be loud. That’s very normal because noise means that the unit works and airflow makes noise.

Honeywell HPA300 CADR, CFM

Dust score: 320

Smoke score: 300

Pollen score: 300

Honeywell HPA300 Maintenance and upkeep

Like many other air purifier manufacturers, Honeywell recommends cleaning air purifiers every 3 months. 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 3 months. To change the pre-filter, you just need to open the front cover – super easy. 

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 a really great 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 definitely one of the best and most affordable units on the market.

Honeywell HPA300 Specifications:



Air Purifier

Honeywell HPA300

Coverage (sq ft / m2)

465 / 43


Filtration system

  • A fan moves air through the filters
  • Odor-reducing pre-filter
  • True HEPA filter
  • Captures 99.97% of airborne particles as small as 0.3 microns and larger


Pollen, lint, hair, spores, mold, pet dander, dust mites, and most household dust, bacterias, and smoke particles. Absorbs low household odors.

Air change per hour (Based on an average coverage ~500 sq ft)


Filters price

Filters cleaning and (or) change

Replace Carbon filter every 3 months, replace HEPA filters annually

Filters cost per year



Dust: 320

Smoke: 300

Pollen: 300

Fan speeds


Noise level

Quiet on low, loud on high



Air quality sensor

Filter change indicator

Auto mode

Programmable timer

Remote control

Carrying handle

Energy star

Energy usage (max)




Ozone emission


Size (in / cm)

H: 22.4 / 57

W: 20 / 51

D: 10.8 / 27

Weight (lbs / kg)

17 / 7.7


5 years limited


Overall Rating (max 5)

4.2 out of 5 stars (4.2 / 5)

15% Price/performance

4.5 out of 5 stars (4.5 / 5)

5% Design

4 out of 5 stars (4 / 5)

35% Performance

4.5 out of 5 stars (4.5 / 5)

15% Features

3.5 out of 5 stars (3.5 / 5)

10% Noise level

4 out of 5 stars (4 / 5)

20% Maintenance & Upkeep

4 out of 5 stars (4 / 5)

Conclusions, recommendations

Note: Though Clean Air Delivery Ratings (CADR) can be found for a large number of favorite brands, many of the most well-respected companies in the air purification field do not give CADRs to their purifier. This should in no way bias potential customers against them.

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