High-quality disposable cardboard mouthpieces designed for use with Fukuda and Schiller spirometers. Each mouthpiece measures 23.5 x 26 x 75 mm with a minimum wall thickness of 1.25 mm and an inner diameter no larger than 23.5 mm. This listing includes two packs of 100 mouthpieces (200 total) for convenient and hygienic respiratory function testing. Ensure accurate and reliable spirometry results with these single-use, compatible mouthpieces.
US: temporary delays — postal services aligning new import rules, 
EU: 1–2 weeks, 🌍 Worldwide: 1–4 weeks ✈️