Aqua Lung/La Spirotechnique
| Company type | Private |
|---|---|
| Genre | Diving equipment |
| Founded | 1946 |
| Founder | Jacques-Yves Cousteau and Émile Gagnan |
| Headquarters | , |
| Owner | Head Sport GmbH |
| Divisions | Aqualung America |
| Website | aqualung-group |
Aqualung Group (formerly Aqua Lung International, and prior to that La Spirotechnique) is a manufacturer of self-contained breathing apparatus and other diving equipment. It produced the Aqua-Lung line of regulators, including the CG45 (1945) and the Mistral (1955). From its founding in 1946 until 2016, the company was a division of Air Liquide. The company was sold to Montagu Private Equity in 2016, and subsequently acquired by Barings LLC in 2023. In June 2025, Aqualung Group was acquired by Head Group.