The Beyond

When the scientists are dressed in a yellow full body suit, the masks are, in fact, diving full face snorkel masks, without the breathing tube. Even the attachment for action cameras are there.

Lamont states "The brain can live without a body, but the body can't live without its brain." The opposite is true. Although rare, some individuals with anencephaly (lacking most of the brain) have survived for years but a brain disconnected from its supply of oxygen and nutrients will die in minutes (barring the kind of technology available in this film (or numerous other disembodied head movies)) .