Especially effective against must odors, any type of smoke or smoke damage, pet odors, stale closed-up stagnant odors, hydrogen sulfide, gas and diesel fumes, formaldehyde, all VOC’s (volatile organic compounds) all noxious irritating odors and offensive gases. It significantly reduces odors and corrosion in collection systems, electrical control boxes and through out the sewer plant and administration offices. Invizafilter is basically odorless after 12 hours. Your odor or VOC’s will be gone. Lasts anywhere from 45 to 60 days depending on the odor loading. The Invizafilter shrinks as it absorbs and neutralizes odors and fumes. The heavier the odor, the faster it is used. The Invizafilter will shrink down to about 20% of its initial size and then should be replaced. This environmentally friendly product can be easily disposed of by throwing it in the trash. Once odors are under control the Invizafilter will shrink at a slower rate extending its life.