The SDI Diagnostics Safe-T-Chek Plastic One-Way Valve Mouthpieces are premium, single-use respiratory testing accessories engineered to protect patients and pulmonary diagnostic hardware from cross-contamination. Constructed from durable, medical-grade rigid plastic, these mouthpieces incorporate an internal one-way mechanical valve that instantly seals shut if a patient attempts to inhale mid-test, completely blocking the accidental aspiration of airborne pathogens left inside the machine chamber. Designed with an optimal, low-resistance internal airway, they ensure that the safety valve moves freely under positive pressure without introducing artificial backpressure or altering critical clinical peak flow measurements. The rigid plastic construction maintains full structural integrity under intense patient lip or teeth clamping to provide a secure, leak-proof perimeter seal, making them an efficient alternative to traditional cardboard versions for high-volume clinical settings.
Call Toll-Free
877-461-5777
