Tesy 
The air being purified goes in through specially designed front panel openings and goes out from the rear upper side through a safety grid positioned over the fan. The safety grid is designed in such a way, so as to reduce the noise generated by the appliance. This provides an opportunity to use the appliance continuously, 24 hours a day, even in bedrooms. The air purifiers of TESY are supplied with a 6-stage air purification system:
1. The prefilter, which is made of activated carbon, reduces cooking odors, tobacco smoke or pet smells. It can also capture coarse particles of dust, lint and pet hair.
2. The HEPA filter catches the finer particles of at least 0.3 micrometer (μm) in size such as dust, pollen, mold spores and various types of bacteria.
3. The carbon filter absorbs odors, gasses and cigarette smoke.
4. TiO2 photocatalytic filter reduces the organic contaminants such as benzene and ammonia. It deactivates bacteria and viruses that have made it through the preceding filters.
5. The UV filter is an ultraviolet lamp, which efficiently destroys microorganisms such as microbes, viruses, bacteria and molds that have made it through the preceding filters.
6. The ionizer disperses negative ions around the room, so as to enhance the purification process. The ions attach to dust particles and take them down on the floor. The floor of the room shall be cleaned periodically.
