“A greenhouse helmet is provided and consists of
a dome containing plants secured within the dome
worn completely over the head of a person
so that the person can breathe in the oxygen given by plants.”
I’m out of breath just reading that!
The above breath taking invention gives new meaning to the expression “pot head.”
US4605000 encapsulates more details of this contraption.
Obvious warning: Please do not test such a device, it may be fatal!
