How Often Should You Replace Your Central Air Filter?
The frequency at which you should replace your air filter depends on your air conditioner usage and the type of filters you employ. Typically, you should swap out inexpensive fiberglass filters every 30 days, while higher-quality pleated filters can go for 60 to 90 days before replacement is necessary. During the summer when your air conditioner is working overtime, more frequent changes may be warranted.
Watch out for these indicators that signal the need for a filter change:
- Dust buildup around your vents.
- Dust accumulating near the vents on your walls or ceiling.
- Diminished cooling performance in your AC system.
- Unusual strains or sounds when your system starts up.
- Extended cooling times to reach your desired indoor temperature.
In simpler terms, if your filters appear dirty, it’s time to replace them!
What Type of Filter should I purchase?
When it comes to air conditioner filters, selecting the right rating is crucial for optimal performance. Filters are typically rated on their efficiency in capturing particles, and this rating is often referred to as the MERV (Minimum Efficiency Reporting Value) rating. MERV ratings range from 1 to 20, with higher numbers indicating better filtration.
If you choose a filter with a MERV rating that is too low, it may not effectively capture and filter out airborne particles such as dust, pollen, pet dander, or mold spores. In this scenario, the filter might allow these contaminants to pass through, reducing the indoor air quality and potentially leading to health issues for those with allergies or respiratory problems.
On the other hand, if you opt for a filter with a MERV rating that is too high, it can restrict the airflow in your HVAC system. This restriction can place undue strain on your air conditioner or furnace, leading to reduced efficiency, increased energy consumption, and potentially even system damage over time. The higher-rated filters are often thicker and more densely packed with filtration material, which can impede the flow of air through the system.
Therefore, it’s essential to strike a balance between filtration efficiency and airflow when choosing an air filter. Consult your HVAC system’s manufacturer guidelines or a professional to determine the appropriate MERV rating for your specific system, taking into consideration your indoor air quality needs and the system’s capacity to handle the chosen filter. This way, you can ensure that your air conditioner operates efficiently while maintaining a healthy and clean indoor environment.
Pro Tip #1
Add bleach to the “U” Pipe under the air handler to help prevent nasty buildup of sediment, which prevents drainage.
Pro Tip #2
Evaporator Coil Foam