Indoor Air Quality (IAQ): Creating a Healthier Home from the Inside Out

Most homeowners think about keeping their homes comfortable and energy efficient, but many overlook one of the most important factors affecting their family's health—Indoor Air Quality (IAQ). The average person spends nearly 90% of their time indoors, and the air inside your home can often contain higher concentrations of pollutants than the air outside.

Modern homes are built and upgraded to be more energy efficient by reducing unwanted air leakage. While this saves energy and improves comfort, it also means homes need a planned way to exchange stale indoor air with fresh outdoor air. Without proper ventilation, moisture, odors, allergens, volatile organic compounds (VOCs), and other airborne contaminants can build up, leading to poor air quality and potential health concerns.

A properly designed ventilation system is one of the most effective ways to improve indoor air quality. Energy Recovery Ventilators (ERVs) continuously bring fresh outdoor air into the home while exhausting stale indoor air. Unlike simply opening a window, an ERV transfers heat and moisture between the incoming and outgoing air streams, helping maintain comfort while reducing energy loss. This creates a healthier indoor environment without sacrificing efficiency.

Bathroom exhaust fans (also referred to as ‘spot’ (or ‘local’) ventilation, also play a critical role in IAQ by removing excess humidity created during showers and baths. High moisture levels can contribute to mold growth, mildew, and structural damage if left unmanaged. Properly sized and vented bath fans help control humidity before it becomes a problem.

Similarly, kitchen exhaust fans remove smoke, grease particles, combustion byproducts, cooking odors, and excess moisture generated during meal preparation. Cooking is one of the largest sources of indoor air pollution in many homes, making a quality range hood or kitchen exhaust system an essential part of maintaining healthy indoor air.

Another major indoor air quality concern is radon—a naturally occurring radioactive gas that enters homes through cracks and openings in foundations and from exposed earth in crawlspaces. Radon is colorless, odorless, and impossible to detect without testing. Long-term exposure is the second leading cause of lung cancer in the United States. Testing for radon and installing a mitigation system when elevated levels are found can significantly reduce this risk and provide peace of mind.

Improving indoor air quality isn't about a single product—it's about creating a balanced home where ventilation, moisture control, air sealing, and healthy building practices all work together. Every home is different, and the right solution depends on how the home was built, how it performs, and how it is lived in.

At Accurate-Airtight Exteriors, we take a whole-home approach to improving indoor air quality. Whether you need ventilation upgrades, ERV installation, bathroom or kitchen exhaust improvements, radon testing and mitigation guidance, or a comprehensive home performance assessment, our team can help identify the best solutions for your home. Contact us at A-AE today to learn how we can help you create a healthier, safer, and more comfortable living environment for you and your family.