Product: Honeywell HPA300 True Allergen Remover
Type: True HEPA Filtration
Filtration Stage: 2 Stage Filtration System
Product Warranty: 5 years
Room Coverage: 465 square feet

CADR Rating (Smoke, Dust, Pollen): 300 | 320 | 300
ACH Rating:
Power Consumption:
40 – 130 Watts
Noise Level: 
very quiet at lowest setting, noisy at highest setting
Annual Filter Costs:
$95 per year

  • Reviews by Existing Customers
  • Cleaning Power
  • Portability
  • Features
  • Power Consumption
  • Price


The Honeywell HPA300 Air Purifier with its high quality air filters and a high ACH/CADR rating make this our RECOMMENDED device for allergies.



Honeywell is a Fortune 100 company with four business groups – Aerospace, Building Technologies, Performance Materials & Technologies (PMT), and Safety & Productivity Solutions. They are one of the world leaders in designing commercial and residential technologies like their budget friendly but top of the line air purifiers.

Honeywell HPA300 True HEPA Allergen Air Purifier

Honeywell HPA300 True Allergen Remover Air Purifier

The Honeywell HPA300 is recommended as the best budget air purifier for allergies by doctors.

It uses a 2 stage filtration system with a True HEPA filter.

Honeywell HPA300 Features

Honeywell HPA300 Features

2 Stage Filtration System

  1. Pre-filter captures large dust particles and pet hair.
  2. True HEPA filter captures 99.97% of dust mites, pollen & pet dander.

Honeywell HPA300 Room Coverage

The Honeywell HPA300 is designed for large room up to 465 square feet. The ACH of this device is 5X meaning that it can clean the air 5 times per hour.

The CADR of Honeywell HPA300 is 300 Smoke | 320 Dust | 300 pollen (cfm). For a budget air purifier, the Honeywell HPA300 has a very high CADR and ACH rating as well as a very high ACH of 5X.

Honeywell HPA300 Design and Size

The Honeywell HPA300 comes in white (HPA304) or black (HPA300) with the same specs.

This air purifier is one of the best budget air purifiers in the world at 22 inches in height, 21 inches in width and only 24 lbs in weight. It’s a powerful air purifier but it is quite a large device for a small room.

This air purifier has a full-size air output grill from the front and another grill for air intake from the back. This design concept easily maximizes the fan power of Honeywell HPA300. Remarkably, the device can completely exchange air in a large room every 12 minutes.

The easy to use touch controls has the following features:

  • Adjustable lighting (bright/dim/off)
  • 4 Cleaning Levels (Germ, Allergen, General Clean, Turbo)
  • Filter Change Indicator and Reset
  • 2, 4, or 8 hour automatic shut-off timer

Noise Level

On the lowest setting the it is quiet, however on the highest setting it is noisy. This is the trade-off for its high CADR and ACH ratings.

Honeywell HPA300 Price

The Honeywell HPA300 is a top of the line but budget friendly air purifier. When it first came out it was $300. You can now buy it online for $250 which makes it a great buy.


+ Best value

+ Great performance and fan power

+ Best air purifier for allergies


 not great for odor

noisy at highest setting


The Honeywell HPA300 True Allergen Remover is the best budget air purifier for allergies. We recommend this device based on the reasoning below:

  • Filtration Quality: True HEPA filter. This device filters out 99.97% of particles and also allows you to customize your filtration to remove specific contaminants.
  • High CADR and ACH Ratings: 5 air changes per hour makes this device one of the best on the market if you want to the freshest air
  • Price and warranty: the 5 year warranty and budget friendly price is why allergists recommend it

Where Can I Buy It?

Check the latest price on my number one online trustworthy store, Amazon.


Honeywell HPA300 Air Purifier

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