The Harvard Healthy Buildings Program has spent years studying the spaces where people live, work, learn, and sleep. Their research points to an important reality: many homeowners focus on what they can see in their homes while overlooking what they breathe every day.

Most Homeowners Don’t Know What’s in Their Air

Introduction

When was the last time you thought about the air inside your home?

For most people, the answer is probably “not recently.”

That’s understandable. Indoor air quality isn’t something you can easily see. Unlike a leaking faucet or a broken furnace, problems with ventilation, humidity, filtration, or airborne particles often develop gradually and quietly.

Yet indoor environments matter more than many homeowners realize. Research from Harvard’s Healthy Buildings Program highlights the importance of the spaces where we spend the majority of our time. Since most daily activities occur indoors, the quality of our indoor environment may play an important role in comfort, wellbeing, and overall quality of life.

The challenge is that many indoor air quality concerns go unnoticed until they begin affecting comfort throughout the home.

The Research: What We Know About Indoor Air Quality

Researchers from Harvard’s Healthy Buildings Program have studied how indoor environmental conditions influence people in homes, schools, and workplaces.

One of the most widely cited findings comes from research examining ventilation and indoor air quality. In controlled studies, participants working in environments with improved ventilation and lower concentrations of indoor pollutants demonstrated significantly higher cognitive function scores compared to participants in conventional indoor environments.

While indoor air quality is only one of many factors that contribute to health and performance, these findings reinforce the importance of paying attention to the environments where we spend our time.

Modern homes are designed to be more energy efficient than ever before. Better insulation and tighter building envelopes help reduce energy costs, but they can also limit natural air exchange if ventilation systems are not properly designed or maintained.

As a result, airborne particles, humidity, cooking byproducts, cleaning chemicals, allergens, and other indoor contaminants may remain trapped inside a home for longer periods.

Most homeowners don’t notice these changes immediately. Instead, they simply adapt.

The bedroom always feels stuffy.

The upstairs is warmer than the main floor.

Windows collect condensation during winter.

Dust returns only days after cleaning.

These issues often become “normal” even though they may indicate opportunities to improve the indoor environment.

Why This Matters for Alberta Women

For women managing careers, households, and families, home is more than a place to sleep. It is where life happens.

It’s the office where virtual meetings take place.

It’s the kitchen where meals are prepared.

It’s the space where children learn, play, and grow.

And during Alberta’s long winters, it’s where families spend a significant portion of their time.

Alberta homeowners also face unique environmental challenges. Seasonal wildfire smoke, dramatic weather fluctuations, dry winter air, and tightly sealed homes can all influence indoor environmental conditions.

Research examining asthma prevalence in Alberta has shown that respiratory health remains an important public health consideration across the province. While no single environmental factor determines respiratory outcomes, researchers continue to investigate the relationship between indoor environmental conditions and respiratory wellbeing.

For many families, comfort issues are often the first sign that something deserves attention.

• Persistent dust accumulation
• Rooms that never seem comfortable
• Dry skin and static electricity during winter
• Excess moisture or condensation
• Uneven temperatures throughout the home
• Lingering cooking or household odors

These concerns may not always indicate a serious problem, but they can provide valuable clues about how effectively a home’s ventilation, filtration, humidity control, and airflow systems are working together.

What You Can Do: Evidence-Based Steps for a Healthier Home

Harvard’s Healthy Buildings framework identifies several foundational elements that contribute to healthier indoor environments. While every home is different, the following actions can help improve overall indoor environmental quality.

1. Improve Ventilation

Ventilation helps remove stale indoor air and introduce fresh outdoor air. Proper ventilation may help reduce the accumulation of indoor contaminants generated through everyday living activities such as cooking, cleaning, and bathing.

2. Maintain Balanced Humidity

Humidity affects both comfort and indoor environmental conditions.

Air that is too dry can create discomfort, while excessive humidity may contribute to moisture-related concerns. Monitoring humidity levels throughout the year can help homeowners maintain a more comfortable indoor environment.

3. Upgrade Your Filtration

Your HVAC system can do more than heat and cool your home. High-quality filtration may help reduce airborne particles such as dust, pollen, and smoke that circulate through the living space.

4. Pay Attention to Airflow

Many comfort complaints stem from airflow imbalances rather than equipment failures.

If certain rooms are consistently too hot or too cold, airflow assessments may reveal opportunities to improve comfort without major renovations.

5. Measure Before Making Decisions

The most effective improvements begin with accurate information.

Testing indoor air quality, humidity, ventilation performance, and other environmental factors provides a clearer understanding of what is happening inside your home and helps prioritize the improvements that will have the greatest impact.

Summary

The quality of your indoor environment influences the space where you spend most of your life. Research from Harvard’s Healthy Buildings Program continues to demonstrate the importance of ventilation, air quality, filtration, humidity, and overall indoor environmental conditions. While many homeowners focus on visible home maintenance, some of the most important factors affecting comfort are the ones we cannot see.

Understanding your home’s indoor environment is the first step toward creating a more comfortable, healthier, and more enjoyable living space for your family.

Ready to Breathe Easier? Start with a Free Home Wellness Assessment.

Alberta Indoor Comfort’s WellnessByHome team evaluates what your home is actually doing — measuring air quality, humidity, ventilation performance, airflow concerns, radon considerations, and water quality in a single comprehensive visit.

Rather than guessing, you’ll receive real information about your home’s environment and practical recommendations tailored to your family’s needs.

Book Your Free Assessment Today:

• (403) 329-6400
• albertaindoorcomfort.com/wellness-by-home

Serving Calgary, Lethbridge, Red Deer, Airdrie, Cochrane, Chestermere, Okotoks, and communities throughout Alberta.

Sources:

• Harvard T.H. Chan School of Public Health — Healthy Buildings Program
• Allen, J.G. et al. (2016). Environmental Health Perspectives.
• Wang, J. et al. (2023). Science of the Total Environment.
• Bosonea, A.M. et al. (2020). Allergy, Asthma & Clinical Immunology.