The Truth About HVAC Air Filters
One of the most persistent myths in home comfort is that expensive HVAC filters are always better for your system. As heating and cooling professionals serving Chicago and the surrounding suburbs, we regularly encounter homeowners who’ve been misled by this common misconception.
Let’s break down the truth about air filters and why more expensive doesn’t always mean better:
The Expensive Filter Myth
Many homeowners believe that using the highest-rated, most expensive filters will result in the cleanest air and best system performance. However, this isn’t always true. Ultra-high MERV rated filters can actually:
• Restrict proper airflow through your system
• Force your HVAC equipment to work harder
• Lead to increased energy costs
• Potentially cause system damage
What You Really Need
For most residential HVAC systems, a middle-range MERV filter (8-11) provides excellent filtration while maintaining proper airflow. These filters effectively capture:
• Dust and debris
• Most allergens
• Pet dander
• Common household particles
The Right Balance
The key is finding the sweet spot between filtration and system efficiency. Unless you have specific health concerns or unusual air quality issues, a moderately priced filter changed regularly (every 1-3 months) will serve you well.
Remember, regular maintenance and proper filter changes are more important than using the most expensive filter on the market. This approach helps ensure optimal system performance while maintaining healthy indoor air quality throughout Bolingbrook, Skokie, Evanston, Lincolnwood, and Morton Grove areas.
Save your money for regular maintenance rather than overspending on unnecessarily high-rated filters that might do more harm than good to your HVAC system.