An air purifier, also called air cleaner, is a device which is mainly consist of power line, control panel, adjustable wind louver, HEPA filter, fan, pre-filter, wheels and adjustable foot margin and so on. Variable air volume fan system with multiple speeds. The air outlet end of the self-cleaning device can get a high cleanliness local environment and can be used with related equipment. The bottom of the air self-cleaning unit is provided with a brake caster and an
adjustable foot cup, which can be moved to the desired position and fixed after being required.It can removes contaminants away from the air to create a clean air environment of the region indoor. The air purifier is greatly helpful to improve the air quality, as the air pollutants can be adsorbed, decomposed and transformed by it. It can help to get rid of all the impurities including odors, smoke, dust, and pet dander.