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Indoor Air Quality FAQs
Do I Need a HEPA Filter?
High efficiency particulate air (HEPA) filters are extremely effective at removing many types of contaminants from your indoor air. In fact, they can reliably remove up to 99.97% of particles measuring 0.3 microns or more in diameter.
This covers many of the common indoor air contaminants you may have a problem with. Most people need to remove both large and small particles from their indoor air, and HEPA filters are certainly a great asset when you’re trying to accomplish this. While they are not the only type of mechanical filter on the market today, HEPA filters are certainly the most effective. If you’re going to invest in some type of mechanical filtration, a HEPA filter is really the only one you should go for.
What Are UV Germicidal Lights?
While things like HEPA filters and air ionizers can remove many types of particulate air contaminants, both large and small, they are not often particularly effective against germs like the bacteria and viruses that are routinely floating around your house. UV germicidal lights, on the other hand, can be extremely effective and efficient at killing those germs.
UV germicidal lights are usually used as part of a complete air quality improvement system. They’re typically placed just past the HEPA filter or other purification device so that they can catch the viruses and bacteria that pass through these other filtration systems. Once they are exposed to the UV radiation produced by the lights, these germs are quickly killed and cannot continue to circulate throughout your house.
How Do I Choose an Indoor Air Cleaner?
There are many factors to consider when you’re trying to select the right air cleaner for your home. One of the main things to keep in mind is that not all air cleaners are equally as good at removing certain types of particulate contaminants. For instance, some are better at catching larger particles, while others do a better job of trapping small particles and absorbing odors.
Of course, you’ll also have to take into account the size and dimensions of your home as you make your selection. You want to make sure that the air cleaner you choose is going to be able to handle the volume of air that will pass through it each day, but you don’t want to go needlessly overboard and spend more than is necessary for something that you didn’t really need.
You’ll also need to have some idea about how significant your indoor air quality problem is so that you’ll know the system you buy can handle that level of contamination. With all of these elements to take into account, it can be pretty tough to sort through all of your options on your own. Professional advice can definitely come in handy.
How Often Should I Change My Air Filter?
Each type of filter will probably come with its own recommendations in terms of a replacement timeline. However, it’s generally a good rule of thumb to change your filter at least once every 90 days. Some super high efficiency filters can go considerably longer without being changed, however, and if you have a very high contaminant load, you may need to change it more often than the manufacturer recommends.