The occlusion valve is used to temporarily close the scavenging in order to build up pressure in the bag while a breath can be received. It opens when released, which is the safe position that reduces the risk of barotrauma. Our occlusion valve is made of high-quality acetal plastic and is sealed with two O-rings.The value will fit any 19mm pop-off valve, but if you have a larger 22mm port, we can offer an adaptor for free.
– Made of High Quality Acetyl Plastic
– Dual O-Rings for leak proof operation