Instruments Manufacturing Corporation (IMC) produce a range of physiology lab instruments including the BMR Apparatus, traditional kymographs, ergographs, etc., for educational institutions . The BMR Apparatus by Instruments Manufacturing Corporation (Imcorp) is a classic Benedict‑Roth recording spirometer, built robustly for educational labs. It offers multi-speed operation, standard accessories, and is competitively priced in India.
The Benedict‑Roth Respiration Apparatus is essentially a recording spirometer used to estimate an individual's basal metabolic rate by measuring oxygen consumption and CO₂ production
It features a 6 L inverted bell, water-jacketed for buoyancy, with a chain counterbalance and pen, recording bell movement on chart paper. It runs at multiple speeds (e.g., 20, 12, 2, 0.4 mm/s)