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
Kit for Common colds, the flu, and respiratory allergies have similar symptoms but are treated with different medicines. Conduct simulated flu tests, analyze labels from over-the-counter medicines, Refill pack contains all materials to refill 10 kits