Mafirita ekutora mhepo anouya mumhando dzakasiyana uye saizi, zvichienderana nezvinodiwa nejini.Zvinogadzirwa nezvinhu zvakasiyana-siyana, zvinosanganisira bepa, furo, nedonje, uye chimwe nechimwe chine mabhenefiti ayo akasiyana uye zvinokanganisa.Mapepa mafirita ndiwo anonyanya kufarirwa uye anokwanisika emhando yefirita, asi anoda kakawanda kutsiva kupfuura mamwe marudzi.Mafirita efuro anogona kushandiswa zvakare uye anogona kugezwa nekuzorwa mafuta zvakare, asi anogona kusasefa zvine mutsindo semasefa emapepa.Mafirita edonje anopa kusefa kwepamusoro uye anogona kuwachika uye anogona kushandiswa zvakare, asi ndiwo zvakare anodhura zvakanyanya.