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.
Strlomaxx thus ensures 100 % sterilization of air. It also enriches air with oxygen & makes it pleasant by removing bad odors from it.
