Ventilation is an important part of maintaining a comfortable, healthy, productive environment for students and faculty. One study found that 86% of classrooms had incidences of inadequate ventilation,1 and a California study found that classrooms had inadequate ventilation 42% of the time2. Improper ventilation can have a negative impact on student health and performance, increase the risk from litigation, and energy usage. CO2-based ventilation control (also called demand controlled ventilation or DCV) is the solution.

With an increase regarding awareness in indoor air quality (IAQ), many manufactures of ventilation equipment, air purifiers, air quality monitors and thermostats are incorporating IAQ sensors into their products. This provides homeowners and building owners information about environmental parameters, such as temperature, relative humidity, carbon dioxide (CO2), and total volatile organic compounds (TVOC’s) in the indoor environment.

By Thermometrics, Inc., a reference guide on Sensor Temperature Resistance Curves.