Sterilization, moea o hloekileng, ho tlosoa ha formaldehyde, ho lekola nako ea sebele, nako e potlakileng ea nako, ho sefa PM2.5
1.formaldehyde filtration
2. tlhoekiso ea mosi
3. ho sefa lerole
4.toluene filtration
5. ho sefa mosi ka letsoho la bobeli
6. ho sefa ha baktheria
7.sefa sa monko
8.tvoc sefa