Our new standard for sampling pump rentals, The GilAir Plus can sample between the entire range of 0.001 to 5 LPM without any additional adapters or modules. Low flow operation is selectable between constant flow or constant pressure allowing any filter, sampling tubes, or combination of sampling tubes to be used with a single pump. The GilAir plus features a digital flow rate display that can be set to a primary calibrator allowing for instant and accurate verification of flow rate. With program ability, fault restart option, and a minimum 8 hour runtime, these pump are suitable for any personal aerosol sampling task.