SDI AstraGuard Disposable Spirometer Mouthpieces mens normal variation within each test

normal variation within each test method (venous vs finger-stick)

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SDI AstraGuard Disposable Spirometer Mouthpieces mens normal variation within each testSDI AstraGuard Disposable Spirometer Mouthpieces Size: 50 Form: MEDICAL SURGICAL SUPPLY ITEM Manufacturer: SDI Hygiene and Safety: Ensure accurate and hygienic spirometry readings by preventing cross contamination between patients. Convenience and Efficiency: Eliminate the need to clean and sterilize reusable mouthpieces, saving time and effort. High Quality and Reliability: Trust in the quality and performance of SDI AstraGuard mouthpieces, designed