
Honeywell has been manufacturing products to clean air for more than 25 years. Over this span of time, they’ve been creating consumer and commercial items, as well as being involved with aerospace and engineering.
They’ve also become a Fortune 100 company and their popularity has risen tremendously over the years.
Air Purifying Technologies
Honeywell’s air purifiers have a unique 3-stage filtration process with true HEPA filters for removing larger and microscopic particles.
The brand is also known for its “Air Genius” technology which provides you with 5 levels of cleaning.
They have a patented “ifD” (Intense Field Dielectric) filter which works to remove 99% of pollutants in the air. It’s also what keeps their “Quiet Clean” range of air purifiers working so silently.
ifD tech offers the same kind of efficiency as true HEPA filters, but they make less noise. The low drop in pressure when filtering air is the difference that results in “ifD” filters operating so quietly.
Our favorite Honeywell Air Purifier is: HPA300 True HEPA Allergen Remover

Each of their air purifiers is tested and has the AHAM Verifide rating. You can learn more about the importance of AHAM Verifide ratings here.
Customer Support
- A Twitter page is available that you can use to tweet or send them a private message
- Their live chat feature is accessible from 8AM to 10PM CST, 7 days a week
- Phone lines with experts: 1 (877) 841-2840
Dear AirHonest:
Honeywell’s air purifiers don’t release ozone emissions. Ozone gases can be effective at removing odors, but they can also make allergies and asthma conditions worse.
Some pre-filters in Honeywell air purifiers can be removed and cleaned. You can shake away the excess dust and wash the filter by hand using warm water. Afterward, all you need to do is leave it to dry before putting back in the air purifier.
Honeywell’s air purifiers have passed the tests to receive CADR ratings that are between 210 and 700 cu m/h. CADR stands for Clean Air Delivery Rate and determines how effective an air purifier is at removing dust, pollen, and smoke particles from the air.