Concern and Questions about Safety

[Dan Parker]

quote bdales1668″ post=14660:

Your bag, as I understand it, allows water vapor to leave the bag while not allowing oxygen into the bag, a.k.a., a semi-permeable membrane.

The portion in bold red is not correct. The Umai Dry bag does in fact allow oxygen to pass through, in both directions, which prevents the dreaded anaerobic environment.

https://www.drybagsteak.com/blog/dont-mistake-oxygen-for-air-or-umai-dry-for-a-vacuum-bag/2015/11/25/