The inside is filled with moisture - resistant and air cooling poly fiber fill then covered with a 3D breathable air mesh liner that allows for optimum comfort for your pooch. (mypetneedsthat.com)
His equipment can make breathable air from the local atmosphere, but food is a problem. (space.com)
The water could be used for domestic purposes, but also broken into its component hydrogen and oxygen to provide breathable air. (scientificamerican.com)