Brand new MODEL: EP1130A HELPS CLEAN THE AIR WITH THE FIRES GOING ON - 99.97% Purification Performance: The extra large Hepa filter can remove numerous as small as 0.3 µm or larger pollutants such as pollen, fine dust, bacteria, smoke from the air. In this way, up to 99.97% of the common airborne allergens and 99.9% of the bacteria will be removed from the air. - 100% Ozone Free. Ozone is a harmful air pollutant. Ionizer emits negatively charged ions into the atmosphere, and produce a small amount of ozone. The UV-C light will produce "photolytic" ozone when UV-C hits oxygen molecules. Aicok Air Purifier is neither ionizer nor UV light air purifier. It produces no ozone. - Special Allergy Mode: Speed settings (low medium and high) offer you various options and you can adjust the cleaning performance depending on the air quality. Intelligent programming increases the cleaning performance by 60%. - Quiet and Timer Function: In sleep mode, the air purifier reduces the noise under 45 dB, so it will not cause any bother when you sleep. The lighting of the air purifier can also be adjusted as needed. With a timer function, the air purifier can be easily adjusted to 1, 4 or 8 hours working time.