6 tips on where (not) to place the indoor air quality sensor

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1. Not where you breathe directly on it

\nIf you place the sensor directly at the table or right next to the bed (or above it), breathing can adversely affect the sensor’s measurements and report higher values than actually exist. This is because a person exhales (in addition to other pollutants) about 100 times higher concentration of carbon dioxide than is present in outdoor air! The outdoor concentration is usually below 450 ppm, while a person exhales air that contains 40,000 to 50,000 ppm!
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2. How high above the ground?

\nThe best placement is 1.2 – 1.8 meters above the ground, roughly at the height of switches. If we consider carbon dioxide itself, it is indeed heavier than air, but it usually mixes well in normal spaces due to the movement of people and natural infiltration or ventilation, so the height of the sensor above the ground is not that crucial. In a really tight bedroom, it is good to place it at head height.
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3. Don’t hide it

\nIn the corner of the room, air circulates poorly, and the sensor may not detect increased air pollution levels. Similarly, behind furniture, where dust can also accumulate on the sensor – this increases the risk of filter clogging.
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4. Not directly by windows or doors

\nBy a window (whether it is open or closed) and doors – especially entrance doors – outside air can affect the sensor due to possible leaks. This can falsely lower the measured values, and the room may then be inadequately ventilated based on distorted information from the sensor.
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5. Watch out for temperature and humidity

\nIt is not advisable to place the sensor in areas where humidity or temperature changes (very) rapidly. The sensor would not benefit from direct contact with liquids – therefore, place the sensor where it cannot be sprayed with water or chemicals.
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6. Pay attention to the placement of ventilation system outlets

\nVentilation system outlets can affect air quality measurements, so it is good to place the sensor at a sufficient distance from them.
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\n➡️ The placement of the sensor should always be according to the specific space; in addition to the points mentioned above, one should also pay attention to ventilation outlets. The best solution is, of course, to consult an expert in the design of air conditioning systems.
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Combined Sensors

CO₂ + humidity

CO₂ sensors

VOC Sensors

RH Sensors

Temperature Sensors

Wireless Sensors

Duct Sensors

Industrial Sensors

Accessories

Refrigerant Leak Sensors

Radon Sensors

PMx Sensors

6 tips on where (not) to place the indoor air quality sensor

1. Not where you breathe directly on it

2. How high above the ground?

3. Don’t hide it

4. Not directly by windows or doors

5. Watch out for temperature and humidity

6. Pay attention to the placement of ventilation system outlets

Combined Sensors

CO₂ + humidity

CO2 sensors

VOC Sensors

RH Sensors

Temperature Sensors

Wireless Sensors

Duct Sensors

Industrial Sensors

Accessories

Refrigerant Leak Sensors

Radon Sensors

PMx Sensors

6 tips on where (not) to place the indoor air quality sensor

1. Not where you breathe directly on it

2. How high above the ground?

3. Don’t hide it

4. Not directly by windows or doors

5. Watch out for temperature and humidity

6. Pay attention to the placement of ventilation system outlets

CO₂ sensors