These valve-free masks are extremely durable with a soft and comfortable inner surface,also have an adjustable nose piece and secured head straps to provide proper fit.These masks have a 510(K) number for the medical market and can be used TB situations as recommended by OSHA. No earloops to tug on ears.
NIOSH Approval: TC-84A-5411 FDA 510 （K）：K020474
No Return Policy - Please note that due to necessary health and safety precautions, all PPE products including this product is final sale. These items are non refundable and non returnable. Shipping & handling is non refundable. Any shipping delays are fully responsible by shipping courier.