Pharaoh definition, meaning, English dictionary, synonym, see also 'Pharaoh ant',Pharaoh's ant',Pharaoh ant',Pharos', Reverso dictionary, English definition, English vocabulary Translation Context
The intake to this ventilation. system must be near the floor. (Chlorine as a gas is. 2.5 times heavier than air.) Exhaust Rate The exhaust system must be able to exchange the air. in the room every three to four minutes.
1 Chlorine is actually a gas at room temperature, which makes breathing it in likely in most homes.  In its gaseous form (such as at room temperature, mentioned above), chlorine can create dioxins, a known cancer-causing compound also related to birth defects, miscarriage, infertility, diabetes, immune disorders and more.