gasproof

As early as April 1938, Virginia had been taking notes upon how to make rooms gasproof and seeking advice about building a bomb shelter; six months later, Grandy had been invited to volunteer his unfinished Oxfordshire home for future public use, in emergency conditions.

Chaplin’s Girl Miranda Seymour 2009

All the rooms, there were five of them, were filled at the same time, the gasproof doors were then screwed up and the contents of the gas containers discharged into the rooms through special vents.

Commandant of Auschwitz Hoess, Rudolf 1951

The mortuary of the crematorium next to the hospital block was therefore used as a gassing room, after the door had been made gasproof and some holes had been pierced in the ceiling through which the gas could be discharged.

Commandant of Auschwitz Hoess, Rudolf 1951

Then he coated the patch with the gasproof varnish, and both boys sat down to give the job time to

The Boy Inventors' Radio Telephone Richard Bonner

He explained the difficulties of the airship builder, the expense and tendency to "pinholes" of gold-beaters 'skin, the curious fact that chemists had so far failed to discover a gasproof varnish.

Kings, Queens and Pawns An American Woman at the Front Mary Roberts Rinehart 1917

a pot of gasproof varnish, ready for the job of patching up the hole.

The Boy Inventors' Radio Telephone Richard Bonner