Air sterilization device with low aerosol bounce

An air sterilization device with low aerosol bounce comprising:

• an air conditioning pipe having a fixing portion;
• a porous filter media secured on said fixing portion, said porous filter media having an entering surface and a leaving surface, said porous filter media having a plurality of irregularly distributed channels, said channels connecting with said entering surface and said leaving surface, said channels being coated with a coating layer having a thickness between 10 μm to 1000 μm for trapping aerosols flowing through said channels so as to minimize said aerosols from bouncing off said channels;
• and
• a UV light generator having at least one UV light generation element and a controller;
• at least one UV light generation element being disposed near said porous filter media, said controller selectively enabling said UV light generation element to emit a specific wavelength and energy at a predetermined time.