Freeze spray

Spray containing propane, butane, and ethanol, for dental applications

Freeze spray (cold spray or vapocoolant) is a type of aerosol spray product containing a liquified gas used for rapidly cooling surfaces, in medical and industrial applications. It is usually sold in hand-held spray cans. It may consist of various substances, which produce different temperatures, depending on the application.

Some of them are highly flammable.[1] Several other types of compressed gas sprays also have a freezing effect: for example, tetrafluoroethane, gas dusters, liquid nitrogen, and carbon dioxide fire extinguishers.

  1. ^ Shadgan B, Med S, Pakravan AH, Hoens A, Reid WD. Subcutaneous and Intramuscular Hemodynamics and Oxygenation After Cold-Spray Application as Monitored by Near-Infrared Spectroscopy. J Athl Train. 2015;50(8):800-805. doi:10.4085/1062-6050-50.6.02