KoKo Spirometry Elliptical BVF Filter (3 packs of 50)
The KoKo Elliptical (BVF) bacterial/ viral filter mouthpiece is elliptical in shape, teal in color, and each box contains 50 filters. This low resistance filter fits KoKo spirometry systems with >99% bacterial and viral protection. It is made for a more comfortable fit and for optional use without rubber flange mouthpieces.
Filter Size: 48.3 mm OD | 44.9 mm ID
Fits the Following PFT Equipment: Koko, KokoLegend, Keystone Koko-Trek, Cybermedic Full Gas Systems Collins 4G & 3G Full GasSystems