GearHead_1
Long Time Member
Removing common odors is about killing bacteria and beyond. The naturally occurring odors are bacteria related, examples: sour milk, decaying matter type smells. Others are chemically related odors and are brought about by contact with chemical compounds or elements, examples would be gasoline and petroleum based odors, cigarette smoke etc. My experience has been that though some products will do a great job of removing bacterial type odors (biocides) they don't necessarily work as well on chemical odors and the reverse is also true. Just my 2 cents.