File:Older-generation snorkel masks.jpg
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Summary
| Description |
English: Three types of older-generation snorkel masks are illustrated.
Type A: A model enclosing the eyes and the nose only. A permanent single snorkel emerges from the top of the mask and terminates above with a shut-off ball valve. Type B: A model with a chinpiece to enclose the eyes, the nose and the mouth. Permanent twin snorkels emerge from either side of the mask and terminate above with shut-off "gamma" valves. Type C: A model enclosing the eyes and the nose only. Removable twin snorkels emerge from either side of the mask and terminate above with shut-off ball valves. Supplied with plugs for use without snorkels, as illustrated. |
| Date | |
| Source | Own work |
| Author | Helmardine |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:46, 16 February 2019 | | 3,053 × 2,561 (1.53 MB) | Helmardine | User created page with UploadWizard |
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