Is it okay to paint the walls while living in the house?

When people live in a house, they are not allowed to paint the walls. In the process of wall painting, especially when latex paint or paint containing harmful substances such as formaldehyde is used, harmful gases such as formaldehyde will be produced, which is harmful to human health, especially to the elderly and children. After the wall painting is completed, although the wall paint will gradually dry, it still needs ventilation for a period of time to let harmful gases out. Ventilation is usually recommended for at least 2 to 3 days, and at least one month if there are children or pregnant women to ensure indoor air quality.