Wearing a mask is one of the most important means of preventing respiratory infections such as pneumonia from novel coronavirus infections. Since pregnant women are in pregnancy, it is even more important for them to be protected. If a pregnant woman is not suspected or confirmed to be infected with novel coronavirus, she can choose a mask that suits her face shape, has lower breathing resistance and is more comfortable to wear overall, such as a protective mask with a breathing valve, which can effectively reduce breathing resistance and stuffiness, but she should consult with a medical professional to confirm whether she is physically fit to wear it. In addition, it is important to wash your hands thoroughly before and after removing the mask to reduce the risk of infection.