When it comes to air pollution, Air Purifier with Washable Filter save us from inhaling toxic air pollutants by cleaning and filtering the air that we breathe. Only Air Purifier With Washable Filters increase the filtration efficiency, as air passes through the layers of filters before being liberated into house environments. The best type of filter for air purifiers is a HEPA filter that can seize 99% of the particles that activate your allergies.