The Truth About HVAC Air Filters
As heating and cooling experts serving the greater Little Rock area, we at Advantage Service Co frequently encounter misconceptions about HVAC maintenance. Today, we’re tackling one of the most persistent myths in our industry: the belief that the more expensive the air filter, the better it is for your HVAC system’s performance.
Let’s break down the facts:
Myth: Higher MERV Ratings Are Always Better
Many homeowners believe that purchasing the highest MERV-rated filter available will provide the best air quality and system protection. However, this isn’t always true. Here’s why:
• Too-dense filters can restrict airflow
• Higher MERV ratings may strain your system unnecessarily
• Not all HVAC systems are designed for high-MERV filters
What You Really Need to Know
The truth is, most residential HVAC systems work best with filters rated between MERV 8-11. These provide:
• Adequate dust and particle filtration
• Proper airflow maintenance
• Cost-effective protection
• Reasonable replacement intervals
Best Practices for Filter Maintenance
Instead of focusing solely on MERV ratings, consider these factors:
1. Regular replacement schedule (typically every 90 days)
2. Proper filter size and fit
3. System manufacturer recommendations
4. Local air quality conditions
Remember, maintaining your HVAC system isn’t about buying the most expensive components – it’s about choosing the right products and maintaining them properly. For specific recommendations about your system, consult with a qualified HVAC professional who understands your equipment and local conditions.
By following these guidelines, you can maintain optimal system performance without unnecessary expenses, ensuring your comfort while protecting your investment.