Pregnant women should not smell 84 disinfectant water. 84 disinfectant water has volatile, the taste is mainly derived from hypochlorite, chlorine, irritating odor is relatively large, pregnant women who smell 84 disinfectant water may aggravate the reaction of pregnancy, easy to stimulate the digestive tract, respiratory tract to produce uncomfortable feeling, more likely to induce nausea, vomiting and other symptoms. Pregnant women should not smell the smell of 84 disinfectant water, if it is already smelled, should be as soon as possible to the fresh air, more fresh air, if long-term smell, may have an impact on fetal growth and development. It is recommended that women avoid contact with irritating substances during pregnancy to prevent adverse effects on themselves and their fetuses. If symptoms of discomfort are more pronounced after sniffing sterilized water, it is recommended to seek medical attention and treatment under the guidance of a doctor.