1. When to use a mask ■If you are healthy, you only need to wear a mask if you are taking care of a person with suspected 2019-nCoV infection. ■Wear a mask if you are coughing or sneezing. ■Masks are effective only when used in combination with frequent hand-cleaning with alcohol-based hand rub or soap and water. ■If you wear a mask, then you must know how to use it and dispose of it properly. 2. How to wear medical masks to protect against coronavirus ■Before putting on a mask, clean hands with alcohol-based hand rub or soap and water. ■Cover mouth and nose with mask and make sure there are no gaps between your face and the mask. ■Avoid touching the mask while using it; if you do, clean your hands with alcohol-based hand rub or soap and water. ■Replace the mask with a new one as soon as it is damp and do not re-use single-use masks. ■To remove the mask: remove it from behind (do not touch the front of mask); discard immediately in a closed bin; clean hands with alcohol-based hand rub or soap and water.