Undiscovered pollution in one-third of all K-12 schools is harming American children and their ability to learn.

A classroom that has indoor air above 600 ppm (parts per million) CO2 will slow student learning, hinder teacher effectiveness, and create low standardized student test scores. Current state and federal laws on indoor air quality are based on obsolete ASHRAE standards, currently set at 5,000 ppm CO2.(1) One in five of the school systems […]