The QRS Nose-Clip (#724050-00), in line with ATS guidelines, is recommended when performing a spirometry test with a QRS spirometer. Warranty: 1 Year. ATS guidelines state "the use of a nose clip or manual occlusion of the nares is recommended, [„]." One acceptability criterion for spirometry is that the test be free from artifacts, including leaks, which can be prevented by using a nose clip. QRS Nose-Clip Literature: QRS Spirometry Consumables Brochure

• QRS QRS-724050-00

QRS QRS-724050-00QRS