face masks

1.The outer ring of this product is made of PVC, and the inner ring is made of double-layer sterile dust-proof cloth, which has the properties of saliya isolation, air filtration and dustproof,

2. When training cardiopulmonary resuscitation techniques and performing artificial respiration training, each person must use a barrier mask to prevent cross-infection of germs;

3.Make students more hygienic and safer when performing training operations;

4.Specification: 50 sheets/box;

5.How to use: Tear open the packaging bag, take it out and cover it on the human face.