4. Activated Carbon Filter: In the first three Filters, air is made completely sterile. Activated. Carbon 'is a very good adsorbent of moisture. When air passes though, it adsorbs moisture to a large extent hence reducing the growth of fungus. which is very harmful. It also removes foul smell Is, bad odors 4 from the air, making a pleasant atmosphere.
5. HEPA OR High Efficiency Particulate Arrestance Filter: This is a 0.3 micron filter. As the name suggests this is a very efficient filter in trapping smallest of the micro-organisms. There are no microorganisms smaller than 0.5 micron size.
 thus ensures 100 % sterilization of air. It also enriches air with oxygen & makes it pleasant by removing bad odors from it. |