Such_Saturation
Member
- Joined
- Nov 26, 2013
- Messages
- 7,370
This works better than a bag and doesn't fill your lungs with that lovely plastic smell. You need two empty bottles and a pair of scissors. Adjust the distance between the bottles until you can obtain a comfortable concentration of carbon dioxide and oxygen. (Inspired by Ray Peat for saying that people with longer noses retain more CO2).