In general, most air filters should be changed every 90 days or 3 months. Pleated air filters are more expensive initially, but they are also more effective at trapping particles and can last up to 90 days, depending on usage. A good rule of thumb for pleated air filters (such as those manufactured by FilterBuy) is to replace them every 90 days. As the filter accumulates more dirt, dust, and allergens from the air, its efficiency decreases. It is important to know when to replace the filter more often.
Experts recommend changing it every 30 days if your air filter is made of fiberglass filters, which are of relatively low quality. On the other hand, expensive pleated filters can work well with a replacement once every three months or six months. Different types of AC furnaces or filters have varying specifications for when they should be replaced. Fiberglass filters are cheaper; however, they will need to be replaced more frequently (usually every 30 days). Pleated air filters are more expensive than fiberglass filters and are made of higher quality materials.
These filters can last 3 to 6 months, depending on other factors. The life of your air cleaner filter will depend on a variety of factors, including filter type, size, and usage. Many larger HEPA filters, such as those in the Amaircare 3000, can last up to 5 years under the right conditions, although 2-3 is more realistic in spaces with large amounts of particles in the air. For carbon filters, the average lifespan is generally 3 to 5 years. However, keep in mind that not all units have the same specifications.
There are air purifiers that will need more frequent filter changes, so be sure to read your air cleaner manual carefully to determine the life of the filter. For example, a one-inch oven filter should be changed every one to three months. A three- to four-inch filter can last six to nine months. If you have a five- to six-inch coarse-grained filter, it can last nine to twelve months. By making sure your filters are changed when needed, you can enjoy having a heating and cooling system that will perform better. You may also appreciate having clean air that is easy to breathe.
If you have small children in your home, you will need to change the air filter more often - once every 2-3 months - and replace it with a quality filter that can filter out common allergens such as pollen. Another option is to use the US Air Purifiers filter change calendar tool. When you start to see gray dust settling all over the surface of your household air filters, it's time to change them. One of the most important things you can do on your own to take good care of your HVAC system is to simply change your air filter on a regular basis. How often you change the air filter will depend largely on the expected service life of the device. Excessive dust, pet dander, and other allergens floating in the indoor air can worsen symptoms such as coughing, sneezing, and runny nose.
There are no strict guidelines, but if the filter shows only a subtle layer of dirt under which the filter material is still visible, then it is in good working order. The longer the filter is in place, the more dirt, dust and allergens will be trapped, clogging the filter and decreasing its efficiency. The main difference between HVAC systems and other types of systems is that they have added features such as gas ovens, heat pumps and air conditioning. If you have multiple smokers in your home, you'll need to adjust those numbers to once a month for one- to two-inch filters; two months for four-inch filters; and three months for five-inch filters. This type has filtration capabilities similar to those of MERV 8 but with additional efficiency for filtering a pet's coat. For example, if homeowners begin to notice particles floating in the air that cause allergic reactions - especially if there are pets or people with allergies present - an air filter with a higher MERV rating should be used to collect more particulate matter. Replacing filters regularly can keep homeowners and their families healthy through efficient air circulation.
When you buy a new air filter, you'll find the manufacturer's recommendations for the replacement program.