Carbon Monoxide (CO) emitted from Gas Geyser causes a person to faint & partial memory loss if prolonged bath is taken. When CO is inhaled, the body's oxygen supply dips. These geysers are connected to LPG or PNG. Gas Geyser is cheap since it uses gas instead of electricity. It is highly recommended to have gas geyser installed outside of bathroom & proper ventilation of bathroom is a must. If geyser is inside then ensure it is at a higher level. Symptoms include Dizziness, Headache, Breathlessness, feeling giddy.