Labmate portable airborne particle Counter is a microcomputer-controlled device with 6 particle size channels (0.1 µm to 5.0 µm).It features a built-in thermal printer, a flow rate of 1 CFM (28.3 L/min), 8-hour battery life, and an LCD display. With a long-life laser diode, it stores 256 samples and supports test periods from 1 to 40 min.