Perfumes and ScentsAir fresheners are consumer products that mitigate unpleasant odors in indoor spaces. They work in one of five ways: Absorption: Adsorbents like activated charcoal or silica gel may be used to absorb offending, chemical odors. Chemical neutralization: Substances such as rubber may be used for some odors. Disinfection. Odors caused by bacterial activity can be eliminated by disinfectants like...