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2. Carbon dioxide sensor - Wikipedia

   en.wikipedia.org/wiki/Carbon_dioxide_sensor

   A carbon dioxide sensor or CO 2 sensor is an ... use in air conditioning ... tailored need for fresh air, respectively. Measuring CO 2 levels indirectly ...

3. Greenhouse gas monitoring - Wikipedia

   en.wikipedia.org/wiki/Greenhouse_gas_monitoring

   Carbon dioxide absorbs some of the radiation, allowing more radiation that passes through the reference cell to reach the detector than radiation passing through the sample cell. Data is collected on a strip chart recorder. The concentration of carbon dioxide in the sample is quantified by calibrating with a standard gas of known carbon dioxide ...

4. Testing, adjusting, balancing - Wikipedia

   en.wikipedia.org/wiki/Testing,_adjusting,_balancing

   In heating, ventilation, and air conditioning (HVAC), testing, adjusting and balancing (TAB) are the three major steps used to achieve proper operation of heating, ventilation, and air conditioning systems. TAB usually refers to commercial building construction and the specialized contractors who employ personnel that perform this service.

5. Colorimetric capnography - Wikipedia

   en.wikipedia.org/wiki/Colorimetric_capnography

   Colorimetric capnography is a qualitative measurement method that detects the presence of carbon dioxide (CO2, a relatively acidic gas) in a given gaseous environment. From a medical perspective, the method is usually applied by exposing litmus paper/film to an environment containing a patient's airway gases (i.e. placing it into their breathing circuit/airway circuit), where it will then ...

6. I measured CO2 levels on a plane: It showed me when I was ...

   www.aol.com/lifestyle/took-co2-detector-flight...

   Air travel amid COVID outbreaks can be unnerving but a carbon dioxide detector can help gauge risks. Here's what a CO2 detector showed on a flight.

7. Continuous emissions monitoring system - Wikipedia

   en.wikipedia.org/wiki/Continuous_emissions...

   Typical monitored emissions include: sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen chloride, airborne particulate matter, mercury, volatile organic compounds, and oxygen. CEM systems can also measure air flow, flue gas opacity and moisture. A monitoring system that measures particulate matter is referred to as a PEMS.