Genuine CPR Mask in boxCE & FDA Approval. OEM or ODM is available. One-way use. More healthy and convenient. Our CPR 510K got approval from FDA. Approval NO. : K102299The technical sheet of CPR MASK as follow: No.Test ItemRequirementLevelAQL1Sizeconnector fits 22mm ISO standard S-12.5130×100×80mm S-12.52Appearancenon smeary,non nick,non drap,non breakage,non distortion, with plump S-32.53InsideNon smeary and eyewinker by eyes S-32.54Expiratory resistance<5cmH2O (at 50L/min)S-12.55Inspiratory resistance<5cmH2O (at 50L/min)S-12.56Packing /LabelIntactnessS-12.5