Your HVAC & Indoor Air Quality: 2025

6 min readUpdated Feb. 27, 2025Erin HynesHVAC
Your HVAC system can improve the air quality in your home.

The quality of the air inside your home is crucial for your health, and your HVAC system plays a significant role in maintaining it. An efficiently running HVAC system does more than just regulate temperature—it also filters the air you breathe.

KEY TAKEAWAYS

  • Replacing a high-quality air filter regularly and performing regular maintenance (including professional annual maintenance) on your HVAC system helps improve indoor air quality significantly.
  • Use ventilation tactics described below such as opening windows and using exhaust fans when mild weather permits to improve air quality in your home.
  • Adding an air purifier to your HVAC system or adding room air purifiers in your home can further enhance air quality.

By adopting a few strategic measures, you can enhance your HVAC air filtration and improve indoor air quality significantly. Regular maintenance is vital to ensure your system operates efficiently. This includes cleaning or replacing filters, inspecting ducts for leaks, and scheduling professional tune-ups.

High-quality air filters can drastically reduce airborne particles and allergens, providing cleaner inside air.

Utilizing ventilation options, such as opening windows or using exhaust fans, helps to circulate fresh air and expel pollutants. Additionally, air purifiers can further boost indoor air quality. Implementing these strategies will create a healthier living environment for you and your family.

Regular Maintenance Matters

Regular maintenance is essential for your HVAC system to function optimally and enhance HVAC air quality. Keeping up with routine heating and cooling system maintenance checks ensures your system delivers clean, healthy air throughout your home. Here are some key maintenance tasks to focus on:

  1. Replace air filters regularly: Dirty filters can impede airflow and degrade indoor air quality. It is advisable to replace them every 1-3 months, depending on the filter type and pollutant levels in your home.
  2. Clean condenser coils and fins: Over time, dirt and debris accumulate on these components, reducing the system's efficiency. Clean them using a soft brush or vacuum cleaner, ensuring the power is off before starting.
  3. Check and clean the condensate drain line: A clogged drain line can cause water backup, leading to mold growth and water damage. Regularly inspect and clean the drain line to prevent these issues.
  4. Schedule professional inspections: Have your HVAC system inspected and serviced by a professional at least once a year. This comprehensive check-up will ensure all components are in working order and address potential issues before they escalate.

Invest in High-Quality Air Filters

One of the most effective ways to improve indoor air quality is by investing in high-quality air filters for your HVAC system. Air filters capture and remove dust, pollen, pet dander, and other airborne particles that can negatively impact your health and home cleanliness. Here’s a breakdown of different filter types:

  • Fiberglass filters: These are the most basic and affordable option. While they capture larger particles, they are less effective at trapping smaller particles like pollen or mold spores.
  • Pleated filters: With a larger surface area, pleated filters capture more particles and are a good middle-ground option for most households.
  • Electrostatic filters: These use static electricity to attract and trap particles, making them more effective than fiberglass and pleated filters, though they can be more expensive.
  • HEPA filters: High-Efficiency Particulate Air filters can capture up to 99.97% of particles as small as 0.3 microns, including bacteria and viruses, making them the most advanced option.

When selecting a filter, consider factors such as home size, local air pollution levels, and any specific allergies or respiratory conditions. Consulting with a professional HVAC technician can help you choose the best filter for your needs. Regardless of the type, remember to replace your filter regularly—typically every three months, or more frequently if you have pets or live in a highly polluted area.

open-windows-to-ventilate-your-home-and-boost-air-quality-on-mild-days

Utilize Ventilation to Your Advantage

Proper ventilation is crucial for improving indoor air quality. By understanding its significance, you can enhance the air you breathe at home. Here are some key considerations.

Understanding Ventilation’s Role

Ventilation involves exchanging indoor air with fresh outdoor air. It removes pollutants, allergens, and stale air, promoting a healthier environment. A well-ventilated home prevents the build-up of harmful contaminants and reduces respiratory issues.

Proper Use of Windows and Doors

Strategically opening windows and doors facilitates natural ventilation. Cross-ventilation, where air enters from one side and exits from another, is particularly effective. This technique circulates fresh air throughout your home, reducing humidity and eliminating odors.

Mechanical Ventilation Systems

Systems like exhaust fans and whole-house ventilation systems provide controlled and consistent airflow. They remove pollutants from specific areas, like kitchens and bathrooms, and ensure a continuous supply of fresh air. Consulting with HVAC professionals can help determine the best mechanical ventilation system for your home.

By employing these ventilation techniques, you can enhance your HVAC system’s ability to improve indoor air quality. Balance energy efficiency with inside air quality, as excessive ventilation can lead to energy loss. Implementing these strategies will create a healthier and more comfortable living environment.

Consider Air Purifiers

To further improve indoor air quality, consider using air purifiers inside or alongside your HVAC system.

Add an Air Purifier to Your HVAC System

Sears Home Services can attach an air purifier to your HVAC system to remove even more pollutants and germs from indoor air than an air filter can. Whole-house air purifiers on your HVAC system help trap airborne particles so they can’t keep circulating throughout your home. Your HVAC’s components stay cleaner and you breathe cleaner air.

Install Freestanding Room Air Purifiers in Your Home

Room air purifiers remove pollutants and allergens, creating cleaner inside air and a healthier environment. Here are some points to consider.

Types of Air Purifiers

Various room air purifiers are available, each with unique features. Common types include high-efficiency particulate air (HEPA) filters, activated carbon filters, ozone generators, and electronic air cleaners. Research and choose the right type for your needs and budget.

Benefits of Using Air Purifiers

Integrating room air purifiers with your HVAC system enhances its efficiency in improving indoor air quality. They effectively capture and eliminate airborne particles like dust, pollen, pet dander, and mold spores, alleviating allergies and respiratory issues, and creating a cleaner living environment.

Placement and Maintenance

Proper placement is crucial for effectiveness of room air purifiers. Place them near high air circulation areas, such as living rooms or bedrooms. Regular maintenance is essential for longevity and effectiveness, including cleaning or replacing filters and checking for malfunctions.

By incorporating air purifiers into your HVAC system, you can significantly improve indoor air quality. To explore different air purifier options and find the right one for your needs, contact HVAC professionals in your area today.

Frequently Asked Questions

How does HVAC impact indoor air quality?
It circulates air throughout your home, so dirty filters or duct buildup can spread allergens. Sears Home Services offers filter checks and duct cleaning to improve air quality.
Do I need more than just an HVAC filter?
Some homes benefit from additional air purifiers, humidifiers, or UV lamps. Sears Home Services can advise if these solutions suit your environment.
Why does humidity matter?
Too dry causes static and respiratory irritation; too humid fosters mold. Sears Home Services can install or service humidifiers/dehumidifiers to balance moisture.
How often should I replace HVAC filters?
Typically every 1–3 months. Sears Home Services can set up a maintenance schedule and recommend filter types based on your home’s needs.

Schedule your HVAC maintenance now!

HVAC checkups from Sears Home Services help keep your heating and cooling system running at its best. Prevent costly repairs and can make your HVAC system more energy efficient with routine maintenance.

Call (213) 596-2538 or schedule online now.

Schedule your HVAC maintenance now!

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Glossary Terms

A capacitor in an AC unit is an electrical component that stores and releases electrical energy to help start the motor and stabilize the voltage during operation.

ENERGY STAR appliances are energy-efficient products that meet the strict energy efficiency specifications set by the U.S. Environmental Protection Agency or the U.S. Department of Energy. These appliances are designed to use less energy and water, leading to cost savings and a reduced environmental impact.

The 608 Certification, mandated by the Environmental Protection Agency (EPA), is required for HVAC technicians to legally handle refrigerants. It ensures technicians understand refrigerant types, environmental impact, and proper handling techniques.

A compressor is a mechanical device that increases the pressure of a gas by reducing its volume, essential in various systems including refrigerators, air conditioners, and HVAC units for cooling and refrigeration processes.

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