... germs, fungi, bacteria on filtersand coils of car air-con up to 99.99%.2.Purify the air in car ... protect the compressor and extend the lifecycle of air-con.3.Easy to use, no need to disassemble air ... copper, aluminum, plastic, etc. Uses:1.Turn off air-con, close all windows and doors.2.Spray direct into fan ... wait for 15mins before turn on air-con again.3.Set the air-con to inner cycle mode and turn on ...