Oily waste safety cans are an essential safety device where ever cloths and wiping rags are used with oils and solvents. Rags and cloths soaked with solvents, thinners, linseed oil, combustible adhesives, and other flammable liquids present a serious fire risk if they are improperly discarded. These cans have specially designed lids that open no more than 75° and stays closed when not in use, isolating contents from fire sources and limiting oxygen so spontaneous combustion risk is reduced. A couple of important facts that many do not know about these safety cans: