Chii chinonzi mhepo yakapfumiswa uye nei vanonyudza vachizonyura nemhepo yakapfumiswa?
Mhepo yakasimbiswa, inozivikanwawo se nitrox, rudzi rumwe rwemhepo ine okisijeni inopfuura 21%. 21% okisijeni ndiyo mhepo yenguva dzose yatinofema pasi pano. Kubatsira kukuru kwokushandisa mhepo yakasimbiswa ndeyokuwedzera nguva yomunhu ari pasi pemvura, uye kuderedza kudikanwa kwokusundira kumuganhu wokudzvinyirira. Iyi betsero inobatsira chaizvoizvo mukudonha kwakadzika. Somuenzaniso, pakadzika mamita 80, mhepo yakajairika inogona kupedza maminitsi anenge 30, nepo mhepo yakafumiswa ne32% okisijeni inogona kupedza maminitsi 45 uye 36% inogona kupedza maminitsi 55. Nepo mhepo yakapfumiswa ichibetsera chaizvoizvo mukuwedzera nguva yapasi, kunokosha kuti vanoshambira vadzidziswe kuishandisa vasati vazvishambira nemhepo yakapfumiswa.