双氧水又叫过氧化氢，化学式为H2O2，纯品的双氧水是一种淡蓝色的粘稠液体，但是纯品的浓度太高，能对人体造成不同程度的损伤，因此我们一般见到的都是兑水后的产品，浓度在3%-6%左右。
　　Hydrogen peroxide, also known as hydrogen peroxide, has a chemical formula of H2O2. The pure hydrogen peroxide is a kind of light blue viscous liquid, but the concentration of the pure product is too high, which can cause different degrees of damage to human body. Therefore, we generally see products mixed with water, with a concentration of about 3% – 6%.
　　因为双氧水的氧化性特别强，杀菌的时候利用的也是这个原理，能破坏细菌的蛋白质，特别是对对厌氧芽孢杆菌杀灭效果特别好，所以备受人们喜爱，而一般的消毒方式以浸泡、擦拭为主，那么这里就有人要问了，能不能使用喷洒式消毒呢？是可以的！3%浓度的的双氧水，必要时可将其浓度稀释为1.5%用于对室内空气和物品进行喷洒式消毒，且其腐蚀性较过氧乙酸低，对室内家具的腐蚀性较低，但同时也会大大降低了消毒的效率，如果用这种方式对空气进行消毒的话成本就较高了。
　　Because the oxidation of hydrogen peroxide is very strong, and this principle is also used in sterilization. It can destroy the protein of bacteria, especially the effect of killing anaerobic bacillus, so it is loved by people. The general way of disinfection is mainly soaking and wiping, so someone here has to ask, can spray disinfection be used? Yes! If necessary, the concentration of 3% hydrogen peroxide can be diluted to 1.5% for spraying disinfection of indoor air and articles, and its corrosiveness is lower than peracetic acid, and the corrosiveness of indoor furniture is lower, but at the same time, the efficiency of disinfection will be greatly reduced. If this method is used for air disinfection, the cost will be higher.

　　此外，长时间使用双氧水会使机体抗氧化能力低下并致使人体遗传物质DNA损伤及基因突变，引起如胃肠道疾病、眼部疾病、心肺等疾病等，所以我们在消毒后一定要注意通风，等到室内的气味消失后在进入，只是最安全的方法。
　　In addition, long-term use of hydrogen peroxide will reduce the antioxidant capacity of the body and cause DNA damage and gene mutation of human genetic material, causing diseases such as gastrointestinal diseases, eye diseases, cardiopulmonary diseases, etc., so we must pay attention to ventilation after disinfection, and enter after indoor odor loss, which is only the safest way.