Features: 1. It can resist water and saliva but allow air to ventilate. 2. When using an emergency artificial respiration, this mask can prevent disease as AIDS transmit and infect. 3. These disposable shields roll with a low resistance filter that fits over the manikin face. 4. It can be protection students from insanitary risks when theyre sharing a manikin in the CPR training class. 5. These shields can be used as a real CPR mask to make the CPR rescues in some emergency cases. 6. User-friendly design protects the rescuer and helps eliminate hesitation when performing CPR. Specifications: Material:PVC,PE Face shield size:29x19cm Specification:36pcs or roll Usage:Training and Teaching Application: Emergency use for mouth to mouth breathing Color:Transparent Quantity: 36pcs or roll Package includes: 36pcs or roll CPR Face Shield Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 2. Please allow 1-3cm measuring deviation due to manual measurement. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!