Ihe ndị na-emetụta mmepụta formaldehyde nke ngwá ụlọ dị mgbagwoju anya. N'ihe banyere isi ihe ya, ogwe osisi, e nwere ọtụtụ ihe na-emetụta formaldehyde emission nke osisi osisi, dị ka ụdị ihe, ụdị gluu, gluu oriri, ọkụ na-ekpo ọkụ ọnọdụ, post-ọgwụgwọ, wdg ....
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