5# 8# TPU waterproof zippers can be used for CPAP and other medical protective suit, air-proof sealed zipper for medical HELMET NIMV (non-invasive mask ventilation)  , gas tight zipper for CPAP (Continuous positive airway pressure ),  therapy (CPAP) uses a machine to help a person breath;  noninvasive ventilation (NIMV) could be a safe alternative option in some selected unweanneable patient.

8TZ CR heavy duty sealed zipper for diving suit and waterpoof zipper, immersion suit zipper, accpet custom length . 8# TPU nylon zipper for dry bag zipper, cooler bag zipper