The Haz-Scanner™ Model GB-2000 portable indoor air quality monitor is designed to measure levels of lung-damaging particulates, carbon dioxide, and carbon monoxide as well as temperature and relative humidity. Standard features include: an inline 25 or 37 millimeter gravimetric filter cassette for concurrent filter sampling for chemical and biological analysis: data logging and real-time wireless data transmission, and easy to use, PC-compatible software for creating compliance ready graphical reports. With interchangeable sensors, the device can be configured to provide 12 simultaneous critical air measurements.