After decoration, formaldehyde in the room will cause the following adverse conditions: 1. The room is full of irritant breath for a long time; 2. Human immunity is reduced, often cold; 3. No smoking, but there are some bad symptoms of smoking, such as throat discomfort, poor breathing; 4. A large number of skin allergies; 5. Family members have a disease symptom, but it is obviously improved after leaving home; 6. Long According to the examination of infertile couples, women are in normal pregnancy state and have deformation during pregnancy; 7. Women suffer from insomnia, menstrual disorders, dizziness and fatigue; 8. Children do not pay attention and memory is reduced.