Preparation tools include a medical mask, two paper clips, a pair of disposable gloves, and a pair of flexible hands

Steps start with the ear strap, align the length of the ear strap with the middle and tie it back. Before tightening, adjust the length to fit the face (too long to send and too short to tighten are not good). After tying the ear straps on both sides, adjust the metal strip of the nose bridge of the mask, and prepare to adjust the curvature of the nose bridge. At this time, the two sides of the mask are not suitable for children because of the large gap, you can use a paper clip to fasten the folds on both sides, as far as possible to ensure that the face does not fall off. At this time, the transformation of the mask was basically completed.

However, the above are all auxiliary suggestions. It is best to use a special mask for children, go out as little as possible, and keep the room ventilated and not gathered. The mask should not be used for more than four hours. It is recommended to use it as soon as it is discarded and reuse it as little as possible.