Enjoy the benefits of high efficiency, HEPA air filtration. Honeywell True HEPA air purifiers are the best choice for reducing airborne allergens. The True HEPA filter captures up to 99.97% of common household particles as small as 0.3 microns from the air passing through it, such as dust, pollen, tobacco smoke, and pet dander. It even helps capture airborne viruses and bacteria. The carbon pre-filter captures larger airborne particles and helps remove common household odors. The Intelli-Check® Electronic Filter Indicator reminds you when to check the HEPA filter and when to replace the carbon pre-filter. Suitable for people, who suffer from allergies or asthma. Filtration rate: 99.97%. Patented design for maximum air intake. Surround-seal technology for optimal air flow. Three settings: low, medium and high. No ozone emissions and no risk of irritation for asthma sufferers. Pre- filter with active carbons to neutralise odours. HEPA filter type: long-life replaceable. Electronic filter change/clean reminder for both filters. Helps reduce unpleasant household odours and VOCs/gases (pre-filter). Smart LED air quality sensor with three colours to easily display the air quality. True HEPA filter = recommended for hayfever and allergies sufferers; five air cleaning levels (whisper silent, germs, general, allergens, turbo). Clean air delivery rate (CADR): 187 m3/hour for a healthier indoor air; 3 years warranty. The true hepa filter technology is the golden standard in air purification.