The new national standard divides children's masks into protective masks for children and sanitary masks for children, and proposes 19 main functional targets. In terms of protective function, the standard requires that the filtering power of particulate matter of children's protective masks should not be less than 95% and the protective effect should not be less than 90%.

The filtering power of children's hygiene masks shall be no less than 90% for particulate matter and no less than 95% for bacteria. In terms of comfort function, considering the respiratory characteristics of children at the stage of growth and development, the standard requires that the expiratory resistance and inspiratory resistance of children's protective masks should not be higher than 45 pa;The ventilation resistance of a child hygiene mask is no higher than 30 pa.