f the oxygen level is going down and there is no oxygen supply from anywhere, put 4-5 fresh leaves of peepal in a glass jar and close the lid for five to seven minutes. Open the lid and keep smelling it through the nose and mouth. Oxygen level will increase by 4-5 points immediately. You can do this method again and again. Placing a camphor tablet inside the jar has yielded even better results. Please use it yourself and tell others as well. Free and virtuous work