How to Evaluate a Home’s Air Quality

How to Evaluate a Home’s Air Quality

When it comes to purchasing a home, many factors come into play. One crucial aspect that is often overlooked is the home’s air quality. Indoor air quality (IAQ) can significantly impact the health and well-being of the occupants. In this article, we will discuss how to evaluate a home’s air quality, the potential health risks associated with poor IAQ, and the steps you can take to improve it.

Why is Indoor Air Quality Important?

Indoor air quality is essential for various reasons. According to the Environmental Protection Agency (EPA), Americans spend approximately 90% of their time indoors. Consequently, the quality of the air we breathe inside our homes can significantly impact our health.

Poor indoor air quality can lead to various health issues, including allergies, asthma, and other respiratory problems. In some cases, it can even contribute to the development of more severe conditions such as heart disease and cancer. Therefore, it is crucial to evaluate and maintain good indoor air quality in your home.

Factors Affecting Indoor Air Quality

Several factors can influence the air quality inside a home. Some of the most common include:

  • Outdoor air pollution
  • Indoor sources of pollution (e.g., tobacco smoke, cooking, cleaning products)
  • Building materials and furnishings
  • Heating, ventilation, and air conditioning (HVAC) systems
  • Humidity levels
  • Pets and pests

Understanding these factors can help you identify potential issues and take the necessary steps to improve your home’s air quality.

How to Evaluate a Home’s Air Quality

There are several methods to assess the air quality in a home. Some of these include:

1. Visual Inspection

Start by conducting a visual inspection of the property. Look for signs of Mold, mildew, or water damage, which can indicate poor air quality. Additionally, check for any visible dust or dirt accumulation, as this can contribute to poor IAQ.

2. Smell Test

Use your sense of smell to detect any unusual odors. Musty or damp smells can indicate mold or mildew growth, while chemical odors may suggest the presence of volatile organic compounds (VOCs) from household products or building materials.

3. Air Quality Testing

Consider hiring a professional to conduct an indoor air quality test. These tests can measure various pollutants, such as mold spores, allergens, VOCs, and radon. They can provide valuable insights into the overall air quality in your home and help identify any potential issues.

4. HVAC System Inspection

Inspect the heating, ventilation, and air conditioning (HVAC) system in the home. A well-maintained HVAC system can significantly improve indoor air quality by filtering out pollutants and maintaining proper humidity levels. Ensure that the filters are clean and replaced regularly, and the ducts are free of dust and debris.

5. Review of Building Materials and Furnishings

Examine the building materials and furnishings in the home. Some materials, such as pressed wood products and certain types of insulation, can emit VOCs that can negatively impact indoor air quality. Additionally, older homes may contain Asbestos or lead-based paint, which can pose significant health risks if disturbed.

Improving Indoor Air Quality

If you find that your home’s air quality is less than ideal, there are several steps you can take to improve it:

  • Ensure proper ventilation by opening windows and using exhaust fans in kitchens and bathrooms.
  • Regularly clean and maintain your HVAC system, including changing filters and cleaning ducts.
  • Use air purifiers with HEPA filters to remove pollutants from the air.
  • Choose low-VOC or VOC-free products for cleaning, painting, and home improvement projects.
  • Control humidity levels by using dehumidifiers or air conditioners, as high humidity can promote mold and mildew growth.
  • Keep your home clean by regularly vacuuming, dusting, and washing linens.


Evaluating a home’s air quality is a crucial step in ensuring the health and well-being of its occupants. By understanding the factors that affect indoor air quality and taking the necessary steps to improve it, you can create a healthier living environment for yourself and your family. Whether you are a homeowner, a first-time home buyer, or a real estate agent, it is essential to prioritize indoor air quality when evaluating a property.

Kurby Team

The Kurby Content Team is a diverse group of seasoned real estate experts dedicated to providing insightful, reliable information for homebuyers, real estate investors, and real estate agents. With backgrounds ranging from real estate brokerage, property investment, and residential home buying, our team combines decades of experience with a passion for demystifying the real estate world. We at Kurby are committed to helping you make informed, successful real estate decisions. Whether you're a first-time homebuyer, a seasoned investor, or a real estate professional, count on the Kurby Content Team to deliver the most relevant, actionable real estate content you need.