Ukufunyaniswa kokuvuza kwe-HEPA Isihluzo, kuyaziwa ukusebenzisa i-aerosol photometer yokuvavanya. I-ZR-6012 i-Aerosol Photometer ihlolwe yinjineli imini nobusuku. Namhlanje, izakupapashwa pub...
Olunjani lona UVUYO ukuba nabahlobo abavela kude!—Confucius