These are fires whose fuel is flammable or combustible liquid or gas. Shipments of flammable or explosive liquids are highly regulated. Historically, "flammable", "inflammable" and "combustible" meant "capable of burning". Mixtures of liquid oxygen and flammable materials can be dangerously explosive. Working in a clean area free of flammable liquids, materials and gases is very important. Acrylonitrile is highly flammable and toxic at low doses. It is highly toxic, flammable, and carcinogenic. Though effective, these were toxic, flammable or explosive. Space heaters are powered by electricity or the combustion of flammable fuel. Similarly, propane is flammable and explosive. Chlorine gas is a strong oxidizer, which may react with flammable materials. The unit process large volumes of light hydrocarbons which are highly flammable and potentially explosive. Camero overcomes Hel and sets Trixie afire along with barrels of flammable liquids. Diesel is less flammable than gasoline / petrol. Ethane is also extremely flammable, dangerous to inhale and explosive.