The Air Quality Equation

When you hear "HVAC," your first thought probably isn't "health"—but it should be. One of the most important roles of heating and cooling systems is to help maintain a healthy indoor environment.

Think back to those math classes where you had to balance equations. The same principle applies here: creating good indoor air quality (IAQ) is all about balance. So, what’s the formula?

Appropriate Temperature + Suitable Humidity + Adequate Ventilation + Proper Filtration = Excellent Indoor Air Quality

All four elements are essential for creating a space that supports health, comfort, and even productivity.

Why does this matter? Because indoor air is 2 to 5 times more polluted than outdoor air, and Americans, on average, spend approximately 90 percent of their time indoors.

Whether or not you have allergies or respiratory issues, poor air quality can quietly affect how you feel and function. That afternoon brain fog? It might not be your third cup of coffee calling—it could be your air quality.

How to Balance the Equation

Appropriate Temperature = Consistent or gradually changing indoor temperatures that factor in the impact of the outdoor climate.

💡 Did you know? Overheating a space can dry out the air and stir up dust particles.

Suitable Humidity = Ideally between 30% and 50%; always below 60%.

💡 Did you know? High humidity not only encourages mold growth but also attracts bugs.

Adequate Ventilation = Replacing stale indoor air with fresh outdoor air.

💡 Did you know? Poor ventilation can allow carbon monoxide to build up to dangerous levels.

Proper Filtration = Use filters rated between MERV 8–13—ideal for most homes and businesses.

💡 Did you know? Using a hospital-grade filter unnecessarily can strain your HVAC system and reduce efficiency.

Ready to Breathe Better?

By addressing all four components—and working with a licensed HVAC professional—you can achieve a balanced IAQ equation that supports your health and comfort year-round.

If you have any questions or concerns, feel free to contact us.

Whether you need 24-7 emergency service or a solution to improve your indoor comfort—at home and work—call us at 781-224-2400 or submit a convenient contact form.