Small soldering jobs requiring a flame or the annealing of small metal objects with a blowtorch attached to a small cartridge of butane.

Controlling the gases arising from the use of oxygen and acetylene, consisting mainly of carbon dioxide with the addition of oxides of nitrogen where an oxidising flame is used, and carbon monoxide.

Small, portable gas fuelled torches used to toast food items, such as meringues and crème brulee. Usually with integral gas cylinders, but may be detachable.

In any use of compliant materials (paper, dress and upholstery fabrics, etc) they may burn rapidly if accidentally ignited by a naked flame and the fumes and smoke produced, particularly from synthetic materials, may be an additional hazard.