Acid Base Indicators, Kit Includes:1x25 ml Hydrochloric Acid, 32% UN1789, 1x10 g Sodium Hydroxide UN1823, 2x30 ml Isopropyl Alcohol, 99% UN1219, 1x30 ml Acetone UN1090
Disposable Bacterial Filter, disposable microbacterial filter significantly reduces need to sterilize your spirometers flow head, 30 mm ID opening allows for an easy, air-tight fit to the flow head
Mouthpiece, Disposable, For a more sterile environment, use the cardboard mouthpieces to help eliminate the spreading of contagious material between students
Noseclip, plastic, foam-padded noseclips help increase the accuracy of spirometry results by eliminating the escape of air through the nostrils during testing