Different MERV ratings affect how often the filter needs to be changed. However, that’s only the case if we don’t consider other factors, such as allergies, asthma, pets, and the area we live in.
Since the pandemic, we’ve become more concerned about our indoor air quality, and we will do what is needed to ensure it’s healthy for our family. One step to take is changing our filters regularly to ensure that dust, viruses, and other pollutants are kept from our air.
MERV Ratings
When you install a lower Minimum Efficient Reporting Value (MERV) filter ranging between one and four, you will need to change it more often. It’s far less efficient, as it filters few pollutants and isn’t recommended for home use.
A MERV rating between five and ten most likely requires changing every two to three months. MERV 8 filters available at FilterKing are the most common filter for household use because they catch most pollutants, such as dust, pollen, and dander.
Air filters with a MERV 11 rating or higher can last for approximately three to six months. If the filter is a thicker material, you can expect to change it around twice a year.
Things to Consider
Changing your filter according to the manufacturer’s instructions isn’t always the smartest because it doesn’t account for the residents living in your home. We’ve done our research to provide you with things to keep in mind.
Filter Type
The type of filter will determine how often you need to change it. If you opt for a MERV 8 made from fiberglass, you will need to change it more frequently. Filters made of fiberglass are not the best quality. You’re looking at a change every 30 days instead of 90. Additionally, if it’s a one-inch thick pleated filter, it will need to be replaced more often than a four-inch filter.
Pets
If you own a pet, then you know their fur goes everywhere. You need to inspect your filters to see if they are clogged. You should check your filter once a month to see how it looks. In addition, it’s important to note that in the summer months, pets will shed more fur, and you might need to change the filter more often.
Dust
If your home is located in a highly polluted area, the smoke and heavy dust can mean that you need to replace your filter more frequently. Also, it’s vital that you clean the air ducts every so often, especially if you live in a dusty area.
Allergies and Asthma
If any member of your household has allergies or asthma, it will affect how often you change the filters. Allergy sufferers often notice that it triggers their allergies during the spring and summer months. You are more likely to change the filters as often as every 30 days if you don’t want the triggers to be in the air.
Final Thoughts
Even though the air filter manufacturer will mention how often the filter should be replaced, be careful before taking it as a fact. You need to consider the residents in your home. Yes, even the furry ones!
This is especially true if allergies and asthma come into play. Furthermore, the area you live in can make a difference. Consider everything mentioned above to understand how often you should replace your filter!