Avalanche breathing ...Avalanche breathing system...Follow
5 links have been added on this idea.
  1. How about this survival helmet with a mask and air supply that can be activated if caught in an avalanche?
    https://whitelines.com/snowboard-gear/news-previews/a-helmet-designed-for-avalanche-survival-the-aeros-backcountry-helmet.html

  2. Check out this avalanche breathing system that can offer up to 90 minutes of oxygen supply!
    https://gearjunkie.com/winter/safeback-sbx-avalanche-safety-device