Can pregnant women use humidifiers?
Generally speaking, pregnant women can use humidifiers. The detailed explanation is as follows:

A humidifier is a household appliance that increases room humidity. It can humidify a designated room. Humidifiers can increase indoor air humidity, reduce irritation of dry air on the respiratory tract of pregnant women, and help relieve common symptoms during pregnancy such as nasal congestion and sore throat. Additionally, appropriate indoor humidity helps pregnant women's skin retain moisture, preventing dryness and itching caused by excessively dry air. Moist air can also improve comfort and help enhance sleep quality for pregnant women.
When using a humidifier, pregnant women should keep it away from their beds and other electrical appliances to prevent moisture from adversely affecting the body or the devices. It is also not advisable to use the humidifier continuously for long periods to avoid excessively high indoor humidity.
In daily life, pregnant women are advised to open windows regularly for ventilation to maintain fresh indoor air.