3 ms·
That's the problem with the old ones, where you breathe in and out the same tube. That's fixed in these full-face masks.
by coryrc 5y ago
That's the problem with the old ones, where you breathe in and out the same tube. That's fixed in these full-face masks.
- lisper 5y agoAs long as they are working properly. The problem is that the valves can fail (or not be properly designed in the first place), and then they become dangerous. https://www.ktvu.com/news/recent-snorkel-deaths-prompts-investigation-into-full-faced-snorkel-masks https://www.ktvu.com/news/recent-snorkel-deaths-prompts-inve...
- treis 5y agoNew snorkels have a one way valve on the bottom. That vents the exhalation plus allows the water to drain when you're on the surface.