Makina ophera tizilombo toyambitsa matenda mumlengalenga ndi makina omwe amapha tizilombo toyambitsa matenda kudzera muzosefera, kuyeretsa, ndi kutsekereza.Kuphatikiza pa kupha mabakiteriya, ma virus, nkhungu, spores ndi zina zomwe zimatchedwa kutsekereza, mitundu ina imathanso kuchotsa formaldehyde, phenol ndi zina organic po ...
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