... carbon, anion, photocatalyst, ULPA filter, ions Five purification:(1) super-activated carbon filter HEPA air filter high concentration of various particles can ... of air, the use of advanced Tio2 photocatalyst, the car in the air harmful volatile organic compounds (formaldehyde, ammonia, ... faster and more thoroughly to remove smoke smell inside the car , alcohol, food distributed to the various odors and ...