Masulfide ari mumvura anogona kunyungudika, zvichiburitsa H₂S mumhepo. Kufema huwandu hwakawanda hweH₂S kunogona kukonzera kuda kurutsa, kurutsa, kuoma kufema, kudzipwa, uye migumisiro ine chepfu. Kusangana nemhepo yakawanda iri pakati pe15–30 mg/m³ kunogona kutungamira ku conjunctivitis uye kukuvara kwetsinga dzemaziso. Kufema H₂S kwenguva refu kunogona kusangana ne cytochrome, oxidase, disulfide bonds (-SS-) mumapuroteni nemaamino acids, zvichikanganisa maitiro e oxidation yemasero uye zvichikonzera hypoxia yemasero, izvo zvinogona kutyisidzira hupenyu.

Boka rega rega re sodium sulfide rinoongororwa zvikamu uye kuonekwa kwetsvina kuti ribvise njodzi yekusvibiswa kubva kwarinobva. Dzvanya pano kuti uwane mabasa ehunyanzvi.