Ngwaahịa a bụ nnukwu mgbanwe nke usoro ịcha akwa na imecha ọdịnala.Ọ nwere ike dochie ihe mgbakwunye dị ka soda caustic, onye na-ahụ maka ịchagharị ihe, penetrant, oxygen bleaching stabilizer, chelating dispersant, degenreasing na waks mwepụ na omenala usoro.E jiri ya tụnyere usoro ds-b na d-sb ọdịnala, otu usoro ịsa ahụ nke nwere otu steamer maka ma ịcha mmiri na ịcha oxygen na-agbanweghị ngwa ọrụ nke ihe ọkụkụ nwere ike ibelata mwepu nke mkpofu atọ.Ngwaahịa a enweghị formaldehyde, APEO na akwa akwa Europe ndị ọzọ siri ike asambodo kemịkalụ na-emerụ ahụ, nke na-enyere aka na nchekwa gburugburu ebe obibi.