General First Aid Advice for Poisonings

If Breathed In:

DO protect yourself from poisoning first
DO quickly move the person away from the gas or fumes into fresh air

If the person is unconscious put them into the recovery position:
Lie the person on their side (not their back) and make sure their head is lower than their body

Seek medical attention immediately

DO NOT try to rescue an unconscious person where a highly toxic or unknown gas is involved without a breathing apparatus. You may become a victim yourself