Airtight vaults, made of e.g. steel and glass, designed for the purpose of execution of human beings by the administration of a lethal gas or substance
Seomraí aerdhíonacha, déanta as cruach nó gloine mar shampla, atá ceaptha chun daoine a chur chun báis trí ghás marfach nó substaint mharfach a thabhairt dóibh