0 A breathable atmosphere is one that is suitable for humans to breathe. --
The atmosphere inside the fictional structure was human-breathable, while the outside atmosphere was highly toxic.
As a cheaper alternative to the more expensive membranes, there are also waterproof/breathable coatings which are less durable.
Pollution of breathable air is a central problem in the management of the global commons.
The city holds a breathable atmosphere, so (unwisely) they take off and leave their spacesuit helmets.
They allow air to reach the skin (breathable).
The use of open weave has enabled production of lighter, breathable, fabrics to ensure better wearing comfort.
Each oxygen tank held several hundred pounds of oxygen, which was used for breathable air and the production of electricity and water.
Oxygen tanks provide up to six hours of breathable air.
