Carbon Dioxide Levels and Guidelines
Normal outdoor air level.
Typical level indoors with good ventilation.
NOTE: If CO2 levels are low when building is
sealed and occupied, check for over-
ventilation (too much fresh air = energy
ASHRAE and OSHA recommended
maximum level in a closed room. Considered
maximum comfort level in many countries.
Poor air quality - requires ventilation
According to many studies this level of CO2
produces a significant increase in
drowsiness, tiredness, headache lower levels
of concentration and increased likelihood of
spreading respiratory viruses like colds, etc.
OSHA and NIOSH first threshold for safety.
maximum allowed concentration within a 8
Specifications
Carbon Dioxide Range: 0~9999PPM
Accuracy: ± 70ppm ± 3% of reading (0~5,000ppm
Resolution: 1ppm
Response time: 1 second
Temperature Measurement: -10 to 70℃ (14~158℉)
Temperature Resolution: 0.1℃/℉
Temperature measurement Accuracy: ± 0.3℃ (10~55℃)
Humidity measurement: 0~99.9%RH
Humidity Resolution: 0.1%
Humidity Accuracy: ±3% (from 10~90% RH)
Power: 3.7V Lithium Battery
Data Log Memory: 12,700 Data Points
Working Conditions: 0~50℃, 0~85%RH (no condensation)
Storage Conditions: -20~60℃, 0~90%RH (no condensation)
Guidelines are average CO2 levels over time.
7 www.CO2Meter.com www.CO2Meter.com 8