Reasons Your Air Filter Might Always Be Dirty

Reasons Your Air Filter Might Always Be Dirty

Every air filter that’s working correctly gets clogged up over time. The dirt shows that the filter is removing particles from your household air, as it should. But are you getting a dirty air filter more frequently than usual? This problem could occur due to a number of reasons. Let’s take a closer look at them along with what you can do to fix them.

Your A/C’s fan is set to “ON”

Your thermostat has two settings: “AUTO” and “ON.” If it’s set to “ON,” the fan will run continuously, even when your HVAC system isn’t actively cooling or heating your home. As a result, air will pass through the filter 24/7. Switch the fan setting to “AUTO” to help your filters last longer.

Leaky ductwork

Leaks in your return air ducts introduce dirt and dust from unconditioned spaces like your attic. These foreign particles can clog up your filter faster than normal. Have your ducts inspected for leaks and sealed by an HVAC contractor.

Furry pets

Do you have shedding pets in your home? The hair and pet dander they introduce make your air filter get dirty faster. Weekly pet brushing and daily vacuuming can help reduce the problem.

You’re a using a high-MERV filter

The higher the MERV (Minimum Efficiency Reporting Value) rating of your filter, the smaller the particles it will trap and the shorter the time it will take to clog up. In addition to needing replacement more often, a filter with a high MERV rating will quicken the wear on your HVAC system’s fan and may downgrade the system’s overall efficiency. An HVAC technician can help you choose the ideal filter for your situation and system.

You could also supplement your constantly dirty air filter with an air cleaner or switch to reusable filters, which you can clean with a garden hose or vacuum attachment. If you need more tips on dealing with air filter problems, contact us at Aggressive Mechanical Contractors. We offer outstanding heating, air conditioning, and air duct cleaning services to satisfied clients in Monmouth County and the surrounding areas.

Our goal is to help educate our customers in Monmouth County, New Jersey and surrounding areas about energy and home comfort issues (specific to HVAC systems). 

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