The TSI Alnor Airassure IPM2.5 Air Quality Monitor provides real-time, reliably accurate measurement of PM2.5 dust concentrations inside commercial buildings. An easy-to-read digital display provides quick reference and interpretation of data. A simple dashboard interface enables convenient monitoring of multiple networked units. All this in a unit that requires minimal maintenance, promises long-term performance, and includes NIST traceable calibration for the satisfaction of tenants, employees, and building owners. The AirAssure Monitor is the ONLY cost effective on-the-wall instrument to meet the needs of ALL the stakeholders in a building.