At present, there are still serious smog, delayed epidemic situation, poor air quality and other problems in some areas of the country, which have a great impact on the healthy growth of children. Based on the problems of poor immunity of children themselves and easy to fall off when wearing masks, the design is carried out. Most of the existing children's masks are for one-time use, with a large consumption of resources, and insufficient consideration of the baby's humanization still leads to the problem of air, it is suitable for growing up with a 0-3 year-old baby. It contains a detachable nipple. It is made of soft silicone material to better fit the baby's face. At the same time, it is integrated with cute elements in the shape to increase its interest. The buckle detail design, the tail strap is retractable, and the clever closing method is convenient for parents to use. It adopts a double filter system and contains a replaceable green filter. It has the characteristics, the goal of taking full care of the baby's healthy breathing has been achieved.