Oxygen absorption function: Nekutorwa kweokisijeni, inogona kunyatso kuvandudza muviri hypoxia mamiriro uye kuzadzisa chinangwa cheokisijeni yekuwedzera hutano hwehutano. Lt inokodzera vakura, vakadzi nendonda, uye vadzidzi vane madhigirii akasiyana e hypoxia. Zvinogonawo kuva kubvisa kuneta uye kukurumidza kudzorera kushanda kwemuviri mushure mekuita muviri kana mupfungwa kusimba.
Ichi chigadzirwa chemhando yepamusoro chemocular sieve inotora oxygen (PSA inobvisa okisijeni yakananga kubva kumhepo). Muchina weokisijeni mudiki muhukuru, uremu huremu, hushoma musimba, kushomeka kweruzha, uye nyore mukushanda.