Description Filtration System and Functions Layer One – Primary anti-microbico filter – Filter large particles or hair. Layer Two – High efficiency HEPA filter – Filter PM 2.5, source of allergy, powder Bacteria and Virus Layer Three – Honeycomb activated carbon filter – Eliminate peculiar smells, absorb harmful gas’s Layer Four – Cold catalyst filter – Efficiently resolve formaldehyde, benzene, ammonia gas, TVOC, sulfuretted hydrogen or other harmful gas’s Layer Five – UV sterilization – Efficiently kill all kinds of bacteria for disinfection Layer Six – Negative ion – Eliminate dust, fresh air, remove indoor static electricity for sterilization
