Kev kho cua
Tsis txhob ntshai smog.
Cov pa phem phem zuj zus tuaj.Tsim kom muaj huab cua huv thiab nyab xeeb hauv tsev yog qhov tseem ceeb heev.
Ob txheej txheej HEPA lim tuaj yeem tshem tawm 99.5% ntawm cov pa phem, ua kom huab cua huv tau zoo dua.
Txhob ntshai ntxiv lawm.Thov ua pa tob tob.