CareFusion AirLife™ Non-Conductive Bacterial/Viral-Retentive Filter AirLife™ IPPB universal manifolds are compatible with Bird® Puritan Bennett® and other commonly used IPPB devices. They feature a silicone diaphragm inside a retainer cap that can be turned to direct exhaled air away from the therapist and patient. All include 39"(22mm I.D.) tubing, two supply lines, 6" (22mm I.D.) ?extube and mouthpiece.