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Honeywell 18155N SilentComfort Permanent, True HEPA Air Purifier Air purifier with HEPA filter for rooms up to 225 square feet Removes up to 100 percent of bacteria and germs that pass through HEPA filter never needs replacement; 19-3/8 by 19-3/8 by 19 inches (l x d x h) Easy to clean with household vacuum twice a year Electronic filter clean reminder; quietly cleans the air with no cold exhaust draft Designed for ultra-quiet, high-speed air purifying, Honeywell's SilentComfort HEPA air purifier removes at least 99.97 percent of airborne particles as small as 0.3 microns from rooms up to 225 square feet. The unit's no-draft technology provides efficient air cleaning without the cool-air exhaust. An Intelli-Check indicator lets you know when the filter needs to be cleaned. The SilentComfort also features two filtration systems; a true HEPA filter, and a carbon pre-filter that keeps larger particles from clogging the HEPA filter and helps reduce household odors. The purifier is equipped with a 3-speed fan that speedily removes dust, pollen, tobacco smoke, and cat dander from the air. The purifier also helps reduce airborne germs, bacteria, mold spores and fungus with up to 100-percent efficiency as well. And, the unit's advanced airflow design provides ultra quiet operation while room air is fully processed once every 12 minutes.

hepa filters

Honeywell 17000N Permanent Pure HEPA Quietcaire Air Purifier Reduces up to 99.4% of bacteria & germs New Permanent Lifetime True HEPA vacuumable filter QuietCare technology for ultra quiet operation 3 speeds with filter clean monitor Recommended for medium rooms This portable air cleaner is recommended for filtering the air in a closed room as large as 168 square feet (12 by 14 feet). As it continuously circulates a room's air--about six times per hour--it employs two filters to remove smoke, pollen, dust, animal dander, dust mites, molds, bacteria, viruses, and odors. Especially useful for asthmatics and allergy sufferers, the cleaner contains a true HEPA filter that is at least 99.97 percent effective at trapping extremely tiny particles (as small as 0.3 microns) while a prefilter reduces odors. Honeywell's IntelliCheck system permits monitoring the filters' lives. Each filter has a button. Pressing a button activates a light, which blinks or shines steadily. One blink indicates that the filter has lots of life remaining, two blinks means less life, three blinks means even less, and a steady light indicates the filter needs changing. The HEPA filter lasts one to three years; the prefilter, three months. Filter replacement is simple, and replacement filters can be ordered separately.