Why Indoor Air Quality Matters More in the Winter Months

McCormick Allum • November 21, 2024

As winter arrives, many of us retreat indoors to escape the cold. However, while cozying up in a warm space, we often overlook a critical aspect of comfort and health: indoor air quality (IAQ). During the colder months, homes and businesses are sealed tightly to keep out the chill, reducing ventilation and allowing pollutants to build up. At McCormick-Allum, we’re dedicated to improving the air you breathe while ensuring your heating and cooling systems work efficiently to maintain comfort throughout Western Massachusetts and Connecticut.


The Winter IAQ Challenge

In winter, we rely heavily on heating systems to stay warm. However, this can lead to drier indoor air, which aggravates respiratory conditions, irritates skin, and even impacts your overall health. Additionally, reduced ventilation during winter means allergens, dust, and other pollutants stay trapped indoors, leading to a stuffy, unhealthy environment. Poor IAQ can exacerbate asthma, allergies, and other respiratory issues, making it even more crucial to address these concerns during the colder months.


How Heating and Cooling Systems Affect IAQ


Your HVAC system plays a central role in maintaining indoor air quality. Dust and allergens can accumulate in ducts and filters, recirculating throughout your home or business. If your system isn’t properly maintained, it may not only struggle to heat your space efficiently but also compromise the quality of the air you breathe.


This is why regular maintenance, including filter replacements and duct cleaning, is so essential. By keeping your heating system in peak condition, you ensure it runs efficiently while also improving the air circulating in your space.


Winter Habits That Improve Indoor Air Quality

Beyond professional HVAC solutions, small changes in daily habits can also improve IAQ during winter:


  • Keep Ventilation in Mind: Open windows occasionally, even during colder months, to let in fresh air and reduce indoor pollutant buildup.


  • Control Humidity Levels: Maintain humidity between 30-50% using a humidifier or dehumidifier as needed.


  • Clean Regularly: Dust and vacuum frequently to remove pollutants and allergens from surfaces.


  • Avoid Harsh Chemicals: Use natural cleaning products to minimize the introduction of volatile organic compounds (VOCs) into your space.


  • Invest in Indoor Plants: Certain houseplants can help purify the air by absorbing toxins and releasing oxygen.


Solutions to Improve IAQ in Winter


  • Regular HVAC Maintenance: Schedule professional tune-ups to ensure your system operates effectively and doesn’t contribute to indoor air pollution.


  • Upgraded Filters: Consider HEPA or high-efficiency filters to capture more airborne particles, reducing allergens and dust.


  • Humidity Control: Use a humidifier to maintain optimal humidity levels, preventing the air from becoming too dry.


  • Air Purifiers: Standalone or integrated air purifiers can help eliminate bacteria, viruses, and other harmful particles.


  • Duct Cleaning: Professional duct cleaning removes dust and debris, ensuring cleaner air circulation throughout your home or business.


Warm Air, Clean Air, Happy Winter


Winter should be a time for comfort, not concern about the air you’re breathing. With McCormick-Allum by your side, you can trust that your heating system will keep you warm and your indoor air will stay clean and healthy.


Contact us today to learn more about how we can improve your indoor air quality and keep your heating and cooling systems running at their best. Let us help you breathe easier this winter!

Commercial Heating services near me
By McCormick Allum September 8, 2025
Discover what to expect when installing commercial heating systems with McCormick-Allum. From choosing the right system to expert installation, maintenance, and repairs, our team ensures your business stays comfortable and efficient. Serving Western Massachusetts since 1888.
Hvac system installation for school buildings
By McCormick Allum September 1, 2025
As schools prepare for fall and winter, reliable heating and cooling is key to comfort and learning. McCormick-Allum inspects, repairs, and replaces HVAC systems to keep classrooms safe and efficient. Start the year with confidence knowing your school’s HVAC is ready for the season.
New HVAC System Installation
By McCormick Allum August 7, 2025
Discover how an HVAC system keeps your home or business comfortable year-round. Learn the basics, benefits, and our expert installation process at McCormick-Allum.
HVAC System Repair
By McCormick Allum August 5, 2025
For many homeowners, it’s hard to tell what went wrong or what steps to take if your HVAC is not working right. But you don’t have to figure it out alone. At McCormick Allum, we understand how important your HVAC system is to your everyday comfort. If something doesn’t seem right, our team is here to help.
HVAC System
By McCormick Allum July 11, 2025
Temperature control is a cornerstone of a comfortable, efficient workplace. Commercial heating and cooling systems manage this automatically to help businesses maintain consistent, energy efficient environments.
HVAC Maintenances
By McCormick Allum July 3, 2025
As summer weather settles in, businesses across the region are feeling the heat. Inside a busy office, warehouse, or retail space, high temperatures can quickly make customers and employees uncomfortable. That’s where a modern HVAC system makes a big difference.
New HVAC Installed in property
By McCormick Allum June 26, 2025
One of the most important ways to keep your guests happy and your property in great shape is by making sure your heating and cooling system works properly. A reliable HVAC system helps regulate temperature, improves air quality, and ensures visitors enjoy a pleasant stay no matter the season.
HVAC Cooling System near me
By McCormick Allum June 26, 2025
You want to stay comfortable during the warmer months, but you shouldn’t have to overpay for it. That’s why we’re sharing some of the top ways to keep your cooling bill low while still enjoying a cool, relaxing home.
HVAC cooling system install
By McCormick Allum May 29, 2025
Moving into a new home is exciting, but it also comes with a long list of to-dos. One important item that often gets overlooked is the HVAC system. Heating and cooling play a big role in your daily comfort, and finding out your system has issues after you move in can lead to stress, unexpected costs, and uncomfortable temperatures.
HVAC Home cooling for the summer
By McCormick Allum May 29, 2025
As the summer heat starts to build, so does the demand on your home’s cooling system. If your current air conditioner struggles to keep up, it might be time to consider an upgrade, one that goes beyond just replacing your AC unit. Upgrading to a full HVAC system could offer the comfort, efficiency, and long-term savings your home needs, especially as we head into the hottest months of the year.