Pregnant women can use air fresheners occasionally, but it is recommended to avoid prolonged use. Air fresheners in the scent can give people’s olfactory organs to bring a fresh and comfortable feeling, the occasional use of air fresheners during pregnancy is generally not harmful to the pregnant woman’s own health and the development of the fetus. But air cleaners are not recommended for prolonged use, because air fresheners are not really able to purify the air, which contains chemical components absorbed through the respiratory tract may jeopardize the health of pregnant women, prolonged exposure to irritate the respiratory tract, sensitive people allergic reactions. And air fresheners in the aromatic substances will have an adverse effect on the human nervous system, resulting in dizziness, headache and other discomfort, and seriously jeopardize the development of the fetus. It is recommended not to use air fresheners for a long period of time during pregnancy, and to open the window to remove the odor after use.