Blackett's Aerophor

- Distinguish from aerophor (or aerophore) (a device to assist musicians playing wind instruments), and from aerophone.
The Blackett's Aerophor is a nitrox semi-closed-circuit rebreather with liquid gas storage made in England from 1910 onwards for use in mine rescue and other industrial uses. It was used until the 1950s. "Aerophor" is from Greek αεροφορος = "air-carrier".