When it comes to Merv 8, 11 and 13 filters, it's recommended that you change the filter at least every 3 months. However, for better filtration and healthier air in your home, it's best to replace the filter every 2 months. If you're not sure when to change your oven filter, you can do a visual check. If there's only a thin layer of dirt where you can still see the filter underneath, then you don't need to replace it yet.
But if there's a thick layer of dirt where you can't see the filter anymore, it's time for a new one. We suggest doing a quick visual check of your filter every 3-4 weeks if you're not sure when to replace it. There are many common filter sizes, so make sure you get an exact measurement for your oven filter type. If you feel a pressure drop in your home or notice a difference in the performance of your heating and cooling system, the dirt filter is usually the first place to look.
Generally speaking, pleated air filters (like those from FilterBuy) should be changed every 90 days. As the filter accumulates more dirt, dust and allergens from the air, its efficiency decreases. To find out if you should replace the filter more often, consider the following: Filters that usually last 90 days should be changed every 30 days during peak summer and winter months. This is when HVAC systems operate at their maximum capacity and require maximum efficiency to keep running smoothly. Please note that this is just a general recommendation.
There are some factors that can shorten or extend the time between oven filter replacement intervals.
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