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The simpler solution is a seal that works inside the lips. This works much better even for people without beards. It's also smaller and lighter, which matters f
by burfog 7y ago
The simpler solution is a seal that works inside the lips. This works much better even for people without beards. It's also smaller and lighter, which matters for all the times the gear must be carried but not actually worn.
- AstralStorm 7y agoThe problem is that mouth seal is inconvenient. Interferes with speaking much more than even a full mask. (Try talking with scuba gear tube in.)