How often should you make home filter changes for your HVAC system? The answer: It depends. Read on for advice that should set you straight as to recommended filter-change frequencies.
What Type of Filter Should You Use?
Many homeowners make do with inexpensive fiberglass filters that catch larger particles of dust and dirt but which are unable to trap tiny particles of pollen, pet dander, and dust, let alone viruses and mold. These filters are generally to be changed every 30 days or so. They are not necessarily a bad thing to use, because they do keep some dirt out of your HVAC system. Depending on the type of HVAC you have, they may be preferred because they are not dense and they allow the air to flow through them quite easily. It may be that your HVAC system is simply not designed to handle denser filters.
A superior type of air filter is made of dense, pleated paper that catches much smaller particles and therefore keeps your air much cleaner. However, these filters do slow down air considerably, so you should make sure your HVAC system can handle this type of filter before you use them. With these filters, it’s generally not necessary to make home filter changes more often than once every 90 days.
Always Check Your Filter When Debating Home Filter Changes
While following the manufacturer’s recommendations for changing air filters is usually a good practice, it can be that your home’s air is extra dirty, causing filters to get dirtier faster. Some conditions that can lead to a prematurely dirty filter:
- You have pets that shed excessive amounts of hair and dander.
- Your home tends to be dustier than most due to conditions on the road or the fact that your home is loosely constructed.
- Your home is damp and tends to get mold or fungus.
- You burn candles and other items that give off airborne particulates.
Any of these conditions may mean you need to change your pleated air filter more frequently than the customary 90-day period. Always check the filter visually to see what condition it’s in.
For more on home filter changes, contact Ace Hardware Home Services.
