The Bio-Oxygen air purifier removes 90-99% of bacteria and germs, 95-99% of cigarette smoke and airborne particles, 95-99% of hydrogen sulphide and 81% of odor. 

The air purifer removes these pollutants by means of the :Bio-Oxygen" process. 

The air purifier can be installed in air ducts and air handling units.

The air purifier was first installed in Hong Kong on 1992.

The Bio-Oxygen air purifier and deodorizer has been widely used in numerous projects in Hong Kong.