Lalco Physio Student Spirometer, For Laboratory Use, Spirometry

Student Spirometer6 ltr. Capacity with chain compensates counter balance to flat through pulley calibrated to denote volume inlet & outlet tubes stainless steel chamber with corrugated rubber tube and mouth piece.This spirometer offers so little resistance to the movement of air to and from the subject's lungs that it does not affect the subject's respiratory movements.Features:6-liter capacity30 mm ID airways result in nearly 50% greater cross-sectional area than traditional 22 mm bore tubingA one-way air valve with mica disc construction minimizes resistanceCounterweight minimizes weight of gas holderFor use with the Transducer Interface and the Student OscillographAs a teaching device, this spirometer has a number of important extra features.