10 cardiopulmonary resuscitation valves

Features - Color: Transparent. Material: Plastic. Dimensions: Approximately 4 x 3.5 x 3.5 cm. - Lightweight and portable, easy to carry and store. - Disposable mask ensuring safety and hygiene. - Practical and portable first aid tool. - One-way filtration valve, easy to use. - Safe material, primarily used for artificial respiration or cardiopulmonary resuscitation.