Ideal for education
?9 liter capacity; for flow and volume measurements
?One-way air valve with mica discs minimizes resistance
?30 mm ID tubing result in nearly 50% greater cross-sectional
area than traditional 22 mm tubing
?Tubing offers minimum distortion on bending so that
maximum cross-sectional area is maintained
?Stainless steel bell
?Mouthpiece on double ball and socket universal joint
?Gas sampler located near the mouthpiece
?Externally-mounted, transparent absorbent canister allows use
of color-indicating absorbent
?Choice of bench use or cart-mounted spirometer