Sterilisization, ikuku ọhụrụ, iwepụ formaldehyde, nleba anya n'ezie, oge ọtụtụ ọsọ ọsọ, nzacha PM2.5
1.formaldehyde filtration
2.smog filtration
3. nzacha uzuzu
4.toluene filtration
5.second-aka anwụrụ ọkụ filtration
6.bacterial filtration
7.isi nzacha
8.tvoc nzacha