Labzee Airborne Particle Counter is a six-channel unit with a thermal printer and Excel-compatible data storage for 1000 samples. It features an eight-hour runtime, a 2.83 liter per minute flow rate, detects particles from 0.3 to 10 micrometers, and includes an LCD display with a laser diode sensor. https://www.labzee.com/airborne-particle-counter/bzap-501