Absorbs and eliminates unwanted odours in and around the cat litter box plus household odours. This proven gel technology will breakdown and eliminate the toughest pet odours for up to 60 days. The solid gel works by absorbing odours in the air and converting them to non-toxic compounds. Easy to use. Just twist off the lid, remove protective seal and reapply the lid. Safe to use all around the home and office. Environmentally safe.