'wind pressure noise'

Three stage filtration process - HEPA Filter/Activated Carbon/Honeycomb Filter - Neutralizes smoke, various odours including chenmical, cigarrete smoke - Prevents against mold, microbes, viruses and majority of airborne germs - Destructs heavy pollen particles, dust, dirt flakes, pet dander, or any other irritants - Reduces unpleasant odours in your house, office, etc. - Miminal noise level, almost silent operation

Three stage filtration process - HEPA Filter/Activated Carbon/Honeycomb Filter - Neutralizes smoke, various odours including chemical, cigarrete smoke - Prevents against mold, microbes, viruses and majority of airborne germs - Destructs heavy pollen particles, dust, dirt flakes, pet dander, or any other irritants - Reduces unpleasant odours in your house, office, etc. -Miminal noise level, almost silent operation