The application of paint, inks and similar liquids to 2D and 3D work. The air source for an air brush can be: a can of air-brush propellant similar to a standard aerosol can; a car tyre; a compressor or a pump.

Firing ceramic materials in kilns powered by mains or bottled gas.Reduction firing ceramic materials in limited air (oxygen) supplies.

The cutting of metals by means of a plasma arc that produces a high-temperature stream of ionised gas capable of cutting metal. Hand-held torches usually use compressed air as the gas but mixtures of argon and either hydrogen or nitrogen may occasionally be used.

This building bulletin provides guidance on ventilation, thermal control and indoor air quality in schools.