Carbon Dioxide - heart palpitations, headache, dry mouth, changes in heart rate and blood pressure, perspiration, trembling. Carbon Monoxide - dizziness, fainting, disorientation in space, fantasies, disturbances of consciousness, hallucinations, thought disorder. Hydrogen Cyanide and its compounds - a feeling of metal taste in the mouth.
Dioksidi kaboni - moyo palpitations, kuumwa na kichwa, kinywa kavu, mabadiliko katika kiwango cha moyo na shinikizo la damu jasho, kutetemeka. monoksidi kaboni - kizunguzungu, fainting, kuchanganyikiwa katika nafasi, fantasies, misukosuko ya fahamu, Ndoto, walidhani machafuko. sianidi hidrojeni na misombo yake - na hisia ya chuma ladha mdomoni.