Sun Yafei: it needs to be mixed with pure water. The tap water in most areas will contain hypochlorite. Contact with alcohol will produce organic compounds containing chlorine, which is not very good for human body. In case of 90% alcohol, 5 parts of alcohol shall be mixed with 1 part of water; in case of 95% alcohol, 4 parts of alcohol shall be mixed with 1 part of water.
Can you replace it with high alcohol?
Sun Yafei: there are very few liquor with a concentration of 75% on the market, and the cost is generally not low, and there is no evidence that it has a good effect on the new coronavirus. Even if you can buy more than 75% liquor, such as some strong vodka, it is certainly not as good as medical alcohol. It can only be used in emergency, not for a long time.
How to use alcohol correctly to better protect?
Can spraying alcohol into the air protect your body?