There are no masks specifically designed for the protection of the elderly in this epidemic, and the selection of appropriate masks is based on the riskiness of the environment in which the elderly live. 1. For elderly people at home, a normal mask can be worn in a properly ventilated and clean environment; 2. If an elderly person goes to a densely populated area or to a hospital for medical treatment, at least a disposable medical mask is required; 3. If the environmental risk is higher than the above level, then at least a particulate protection mask or a medical protection mask is required.