How often to change home air filter reddit?

Or right after a major renovation. It's TERRIBLE for your system to have a filter as clogged as I can safely assume yours was.

How often to change home air filter reddit?

Or right after a major renovation. It's TERRIBLE for your system to have a filter as clogged as I can safely assume yours was. It works harder, doesn't work as well, costs you more money, and shortens the lifespan of the entire system. You should change it every 3-4 weeks, if not sooner, depending on how dirty it gets in those 3-4 weeks.

Every month or two, depending on how dirty they are. I use a MERV 8 - 1 and replace it every ~2 months. However, I have no animals inside. Three-month filters are changed every three months.

It saves electricity and extends the life of the HVAC unit. Check around the oven (usually where there seems to be a place for air to come in or out) to see if there is anything that seems removable. The other filters that exist are usually 20 x 25 x 5, those only need to be changed once a year. Every home is different, and in my area the newest homes are built with fresh air intakes and that filter will filter the air in your home and the fresh air outside.

We have a cat and central air conditioning, and I use the fan throughout the house a lot to circulate the air, and I also have terrible allergies. It should be changed regularly, which means you should inspect it monthly and change it when it fails the visual inspection. When I replace my air conditioner, I'll probably relocate it to the attic and change to a coarser filter system that I can do twice a year. Filter changes depend on how much the blower operates, how much dust is in the air, if you have pets, the thickness of the filter, and the MERV rating.

The ones that really kick in is when someone installs an air controller under a house and leaves the filter inside it and, over the years, sucks in dirt and everything else and ends up killing the coil and everything else. I write the date at the end of the filter in sharpie every time I do it so that when I remember to look at it I can check how much time has passed. Also, if you have cold air returns that aren't completely sealed, you're going to vacuum different things. The previous owners wrote the measurements on the side, which is useful, and they are also apparently 4-inch thick filters, which apparently don't need to be changed as often.

When you pick up your existing filter, if it's not too dirty, try to see an arrow on the side of the filter and the direction of the air flow. In reality, this isn't done so much for air quality as it is for efficiency and extending the life of your system.