Mask Fit Effect

The mask must be of the right size and the way of wearing it must be correct for the mask to be effective. Masks on the market are generally divided into rectangular and cup-shaped. Rectangular masks must have at least three layers of paper structure to have a protective effect. The user needs to press the iron wire of the mask on the bridge of the nose, and then spread the entire mask along the bridge of the nose to be effective. Children can wear a rectangular surgical mask, because it has no fixed shape, and if it is tied well, it can fit tightly on the child’s face. For cup masks, make sure that the density of the mask is sufficient after being attached to the face so that the exhaled air will not leak out to be effective. When wearing a cup-shaped mask, you can try to blow in with your hands covering the mask to check whether there is air leaking from the edge of the mask. If the mask cover is not tight, readjust the position before wearing it.