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Vitalograph SafeTway One-way Mouthpieces (Box of 200)
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ng\u003eSafeTway One-Way Mouthpieces for Vitalograph Spirometers. Come in a box of 200.\u003c\u002fstrong\u003e\
u003c\u002fp\u003e\n\u003cp\u
003eThese are disposable mouthpieces with One Way Valve that allows entry of expired air into the measuring system but... See More
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ng\u003eSafeTway One-Way Mouthpieces for Vitalograph Spirometers. Come in a box of 200.\u003c\u002fstrong\u003e\
u003c\u002fp\u003e\n\u003cp\u
003eThese are disposable mouthpieces with One Way Valve that allows entry of expired air into the measuring system but... See More
