The ndd Spirette Mouthpieces are precisely engineered to fit ndd devices, ensuring accurate and reliable results for respiratory tests with Easy on-PC, EasyOne Pro, and EasyOne LAB Spirometers. These mouthpieces are single-use and disposable, specifically designed to prevent cross-contamination between patients and provide a safer and more sanitary testing environment. Features: Swiss Design by ndd Engineers: Emphasizing precision and reliability. Breathing Tube for Infection Control: Integral in maintaining sanitary conditions during respiratory tests. Ergonomic Design: Ensures comfortable testing for patients and facilitates easy handling for technicians. No Special Storage Condition: Offers practicality and longevity, with no expiration date. Package Contents: 50 Pack (2050-1): Includes a dispenser box. 200 Pack (2050-5): Includes a dispenser box. Trust in the meticulous design and dependable functionality of ndd Spirette Mouthpieces to maintain sanitary standards and deliver consistent results in respiratory diagnostics.