Masks are an indispensable item during the epidemic. However, for children, the size of adult masks is inevitably too large. Wearing loose and loose, it is not protective at all. Therefore, children's masks are the focus of many parents. On March 19, 2020, Guangdong issued the “Disposable Use of Children's Masks” group standard (T/GDMDMA 0005—2020). This set of standards formulated the appearance size, nose clip structure, and filtration of masks based on the actual use of children’s masks. Related performance indicators such as efficiency, microbial indicators, biological evaluation, etc.
According to the characteristics of children's face, the standard provides two recommended specifications for older children and children, which are 14.0cm×9.0cm and 12.0cm×7.0cm, which are convenient for choosing suitable masks for children of different ages.