Bacharach, Inc. introduces its new carbon dioxide (CO2) portable gas analyzer series, available in two models. Based on one common platform, the two models have a powerful internal pump, new and improved operating software, the latest battery technology, USB data communications, and flexible sensor options. In addition to CO2 infrared-based (IR) detection and measurement, each model offers optional sensors including oxygen, temperature, and relative humidity.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.