IAQ (Indoor Air Quality)
Indoor Air Quality (IAQ) describes the health and cleanliness of air inside buildings. IAQ is affected by pollutants like dust, mold, VOCs, and combustion gases, along with ventilation and humidity levels. Good IAQ improves comfort, health, and productivity.
💡 Key Takeaways
- ✓Indoor Air Quality (IAQ) describes the health and cleanliness of air inside buildings. IAQ is affected by pollutants like dust, mold, VOCs, and combustion gases, along with ventilation and humidity levels. Good IAQ improves comfort, health, and productivity.
- ✓Source control plus ventilation reduces pollutant buildup.
- ✓Balanced humidity helps limit mold and irritants.
- ✓High-efficiency filtration improves air quality but may require airflow checks.
IAQ (Indoor Air Quality)
/ˈɪndɔːr ɛr ˈkwɒlɪti/
Definition
Indoor Air Quality (IAQ) describes the health and cleanliness of air inside buildings. IAQ is affected by pollutants like dust, mold, VOCs, and combustion gases, along with ventilation and humidity levels. Good IAQ improves comfort, health, and productivity.
Why is indoor air quality important?
Good IAQ reduces allergens and pollutants, supporting healthier, more comfortable indoor spaces.
Source: The Cooling Company
Quick Facts
How IAQ (Indoor Air Quality) Works

Ventilation, filtration, and humidity control improve IAQ.
Real-World Application
Offices improve IAQ with regular HVAC maintenance, upgraded filtration, and fresh air ventilation.
Pro Tip
Use IAQ sensors and replace filters on schedule to keep indoor air clean.
“Use IAQ sensors and replace filters on schedule to keep indoor air clean.”
Important Things to Keep in Mind
- Source control plus ventilation reduces pollutant buildup.
- Balanced humidity helps limit mold and irritants.
- High-efficiency filtration improves air quality but may require airflow checks.
Did You Know?
The EPA lists indoor air pollution among the top environmental health risks.
FAQ
What are common IAQ pollutants?
Dust, mold, VOCs, pet dander, smoke, and combustion gases are common IAQ issues.
Can HVAC systems improve IAQ?
Yes. Proper filtration, ventilation, and humidity control are key to healthy air.
Do plants improve IAQ?
They can help slightly, but ventilation and filtration have a much bigger impact.
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