09/12/2026
Many homeowners don't realize that an incorrect or clogged air filter can cause serious HVAC issues. Running a dirty or overly restrictive filter is like asking your system to run a marathon with a stuffed nose! It restricts airflow, raises static pressure, overworks the blower, and can even freeze your coils or trip the breaker.
Here is a quick breakdown of MERV ratings to help you pick the right fit:
MERV 1–4: Catches large particles like dust, lint, and carpet fibers.
MERV 5–8: Ideal for standard household dust, pet dander, hair, and mold spores.
MERV 9–12 (Recommended): Uses pleated media to catch fine dust, pollen, and auto fumes. MERV 10 offers an optimal balance between maximum air quality and smooth airflow without extra costs.
MERV 13–16: Hospital-grade filtration. Be careful using these in standard residential systems, as they can severely restrict airflow if your equipment isn't designed for them.
Simple Steps to Maintain Your System Like a Pro:
Check Regularly: Inspect your filter at least every 45 days.
Proper Installation: Ensure the printed airflow arrow points toward the furnace/blower motor.
Date It: Write the installation date directly on the filter edge.
Keep Air Fresh: If you want continuous purification without running your AC or heater constantly, set your thermostat fan to ON or CIRCULATE (which runs the fan ~5 minutes every 15 minutes).
Have questions about your HVAC setup or filter compatibility? Drop a comment below or give us a call! 📞👇