The core component of any good air quality system is the filter. A good air filter removes almost all of the particles that inundate your home every day – from the pet dander that flakes off of your cats or dogs to the pollen released by plants both indoors and out. But many homeowners are not aware of when they should change the filters in their air quality system. They know it should be done regularly, but how often and when do you ignore the manufacturer’s recommendation to ensure higher quality air? Know Your Home The first thing to consider is the size of your home and what types of contaminants you must deal with each day. Air testing helps with this, as does regular cleaning of the areas around your air filter, including your ductwork. If you don’t have any pets and don’t keep any plants inside, your biggest air quality issue is likely dust, and dust will only fill up the filters quickly if you have a large family. However, if you have a lot of pets, multiple plants and a large family, the odds are that your filter is being put through the ringer every day – asked to filter out a tremendous number of contaminants. This is when you might need to change the filter more often. Changing Your Filter If you have a high quality HEPA filter, it’ll probably work for as long as it’s rated. Only lower quality filters or those not large enough for the space in which they are installed will fail early. However, keep in mind that a HEPA filter, even when it can last longer, should always be changed no later than the manufacturer’s recommended date. For most homes that timeframe is about 6 months. However, some higher quality filters can last as long as 12 or even 18 months in the right conditions. If you use your air filter in conjunction with an air purifier, you should also have the cartridges changed out at the same time as your filter. If you think you are changing your filters too often, you can always have your air tested to determine if the contaminants in your home require less filtration. Some home have filters larger than they need installed or lower grade filters that get changed too often unnecessarily. As long as your family is safe and healthy, you might as well try to save some money.
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