1. Kana paine kubhururuka muNitrogen jekiseni pombi kana yekushambadzira yeOxygen yakadzika kupfuura 18% panguva yeNitrogen jekiseni, isai basa rekudzivirira njodzi. Vashandi pane imwe neimwe yekuchengetedza pfungwa vanofanirwa kuita basa rakanaka rekuchengetedza iyo yekudzoka mhepo.
2. Pamberi peNitrogen jekiseni, vashandisi uye varindi vanofanira kunyatsodzidza matanho ehunyanzvi uye nekuzvishandisa.