When it comes to maintaining your HVAC system, one of the most important things you can do is to change your air filter regularly. But how often should you replace a 4-inch filter? The answer depends on several factors, including the type of filter you have and the environment in which it is used. In this article, we'll provide a comprehensive guide to help you determine how long a 4-inch filter will last and how often you should replace it. For filters 3 to 4 inches, it's recommended that they be changed every 6 to 9 months. If you have a 5- to 6-inch coarse-grained filter, it can last 9 to 12 months.
During the winter, when the oven is used more often, you'll need to replace the oven filter more often. The short answer is that a 4-inch filter will last longer and provide better air quality for your home. However, northerners whose ovens have no rest for months may want to change their filter every 30 to 60 days, because more air is being drawn through the filter and it will clog more quickly. It involves loosening the screws that hold the filter cover in place if it is located behind a return air vent or simply pulling the filter out of a slot if it is on the side of the oven. You can buy filters that can be washed and reused, or you can exchange them with new ones as recommended in the manufacturer's owner's manual. Filters receive a minimum efficiency report value (MERV), ranging from 1 to 16, although ratings 6 to 12 are best for residential furnaces.
When the oven filter becomes clogged with contaminants, air cannot circulate properly through the system. Without a filter, the oven would stop working quite quickly because the equipment would be too dirty to work properly. Pets can also be an excellent reason to consider an improved or superior MERV filter for your HVAC system. Essentially, the better a filter is at trapping certain types of particles, the higher its MERV rating. All the air that circulates through your HVAC system, whether for heating or cooling your home, will eventually pass through the air filter. Thicker filters don't have to be changed as often, such as 6-inch filters, which can last 9-12 months before they need to be replaced.
The primary purpose of an oven filter is not to clean the air you breathe, but to clean the air that passes through the oven and other HVAC equipment. By making sure your filters are changed when needed, you can enjoy a heating and cooling system that will perform better. You may also appreciate having clean air that is easy to breathe. If you answer yes to this question, you'll want to change your air filter every 6 weeks to maintain the best indoor air quality.