MD Spiro, A MicroDirect Company products

Simple test for respiratory muscle strength. The MicroRPM brings together the measurements of maximum inspiratory and expiratory mouth pressures (MIP/MEP) and sniff nasal inspiratory pressure (SNIP) in one portable device.  Simple and easy-to-use, the pocket sized, battery operated MicroRPM features a clear digital display of the results in cmH2O.