The MERV 16 filter is the most restrictive and will likely need to be replaced every 3 to 6 months. If you're still unsure of how often to change your oven filter, you can do a visual inspection to determine if it's time for a new one. If there is only a thin layer of dirt where you can still see the filter underneath, you probably don't need to change it. However, if there is a thick layer of dirt where you can't see the filter underneath, it's time to switch it out.
We suggest doing a quick visual check of the filter every 3 to 4 weeks if you're not sure how often to replace your oven filter. There are many common filter sizes, so make sure to get an exact measurement of the type of oven filter you have. If you notice a drop in pressure in your home or a difference in the performance of your heating and cooling system, the dirt filter is often the first place to look. Generally, most air filter manufacturers and HVAC companies recommend changing the air filter every 90 days or 3 months. This may vary depending on the location of your home (e.g.
dusty and dry climates), if you have pets, and the age of your system and equipment. If you have pets at home, you should consider changing the filter every 60 days or 2 months, and in households with multiple pets or people with allergies or respiratory conditions, we recommend changing the filter every 20 to 45 days. Vacation homes or empty houses that aren't used much can wait to change filters every 9 to 12 months. The general consensus is that the more you use your home, the more often you'll need to change your air filter. Filters with higher MERV values trap small particles more effectively than filters with lower MERV scores.
As the seasons change, pollen and other seasonal particles can quickly clog a disposable filter, even if it's a four-inch filter. Using an air filter with a MERV rating higher than that recommended by the boiler or air conditioner manufacturer may affect its performance. Air filters are usually made of spun fibreglass (the same material used for attic insulation) or 26% pleated paper framed with cardboard for greater stability and rigidity. Air filters are designed to trap and remove fine particles from the air that circulates through the system. Winter is especially difficult for air cleaners, as your system will recirculate indoor air day and night. The higher the MERV scores, the more effective the filter will be at preventing air particles from passing through it.
Use a filter with a MERV rating of 12, such as the Nordic Pure Filter (available on Amazon), if your oven can do it. These air filters act as barriers to prevent contaminants from entering the HVAC system or circulating through the air. Air filters usually have a MERV (minimum efficiency report value) that determines what type and size of contaminants they will work against. Using the right air filter gives you the opportunity to enjoy optimal air quality without consuming excess energy. It's important to note that there are high-efficiency filters that are designed to filter out small bacterial, moldy and fungal particles, but standard MERV 8-11 filters only block the largest particles of dust, dirt and 26% of hair. In addition to filtering particles filtered by MERV 8 and 11, MERV 13 can filter kitchen smoke, smog and virus-carrying viruses.
Thomas & Galbraith Heating, Cooling & Plumbing shares how to check and change your oven filter to keep the air clean and your home comfortable.