NIST’s Indoor CO2 Tool Can Help Assess Ventilation and Indoor Air Quality

A key ingredient for good indoor air quality is good ventilation. One simple method that can be used to determine if a space is well ventilated is to measure indoor carbon dioxide (CO2) levels.
 
This greenhouse gas drifts through more than just our skies. CO2 can be found in the buildings where we live, work and shop too, as it is part of the air we breathe out. Good ventilation will keep the concentrations of CO2 and an array of contaminants low. Poor ventilation will allow them to accumulate. How do you know which category your ventilation fits into?