The “gold standard” in air purification. Filters capture up to 99.97% of microscopic particles (as small as 0.3 microns in size, form the air that passes through the filter). Includes odor absorbing pre-filters.
The technology that is most often recommended by physicians.
Captures up to 99.97% of airborne allergens, 0.3 microns or larger, from the air that passes through the filters.
Mechanical Filtration (particles are forced through and trapped in a high efficiency filter).
HEPA Filters are replaced approximately once per year.
Includes odor absorbing pre-filter (replace every 3 months).
1 Based on Nov 2014 Cascade Survey Research results reporting 148 out of 171 (87%) surveyed physicians that recommend portable air purifiers to their patients, recommend True HEPA or HEPA-TYPE air purifiers.
QuietClean® & AirGenius.
Capture up to 99% @ 2 microns (featured in QuietClean® products) and 99.9% at 0.3 microns (featured in Air Genius products).
Best Technology for general air cleaning, featuring permanent, washable primary filters.
QuietClean® captures up to 99% of larger particles, from the air that passes through the filters. AirGenius captures up to 99.9% of particles, 0.3micorns or larger that passes through the filters.
Exclusive Honeywell Air Purifier Technology – Patented ifD® filter
Electronic Filtration (captures particles are attracted to and captured by the ifD® filter.
Permanent filter, simply rinse or wash clean.
HEPA-Type filters capture up to 95-99% pf particles (as small as 2 microns in size from the air that passes though the filter). Includes optional on-off ionization to boost cleaning power. Odor absorbing pre-filter can be purchased separately.
Good technology for general air cleaning.
Captures up to 95-99% of airborne particles, 2 microns or larger, from the air that passes through the filters.
Mechanical filtration with optional on-off ionization (particles are forced through and trapped in a filter).
Filters typically need to be replaced once every 4-6 months.
Optional odor absorbing pre-filter.
Control the source of allergens.
They all use a fan to:
Pull dirty, stale air into the unit. Force the dirty air through a filter that captures pollutants. Return cleaner, fresher air back into room.