Interpretation of key quality indicators of masks (2) ——Formaldehyde
Speaking of formaldehyde, everyone will definitely be familiar with it. When the home is renovated, we will worry about the excessive formaldehyde in paint and home; when we buy a new car, we will worry about the excessive formaldehyde in the car; when we buy a toy for our children, we will worry about the excessive formaldehyde of the toy ... During the epidemic prevention and control period, th