I think this device is designed to provoke a conversation rather than to solve the problem it says it sets out to solve. There is no reason it has to look like a futuristic coffin. Most people breath only through their nostrils and mouth. A simple mask could do the same job this huge contraption is sets out to do. Except you couldn’t exhibit a scuba mask hooked up to a nitrogen tank in a museum. It wouldn’t have the same visual impact and scifi otherworldlyness.