Facts About Air Filters
Air Filters The Facts
Air cleaners, air filters, whatever you want to call them, they are important to your health as well as to the health and performance of your air purifier machine. Air purifier machines use air as well and unless they are kept clean they will quickly become laden with dirt and dust particles. Exactly the way those same particles could infiltrate your lungs and make you ill.
Air Filters Trap Microscopic Particles
Air filters do help with air cleaning. They remove particles and pollutants from the air, most of which you cannot see with your bare eyes. If you could see these under a microscope, you would see millions of tightly packed particles floating around which is actually what is going into your lungs every time you breath.
It’s not like you want to go around with magnifying glasses or microscopes attached to your face anyway. Nor could you hold your breath each time there is a particle, so it is important to understand what air filters do.
Most in-duct air conditioning systems are equipped with air filters to improve their performance, but the filters they use are no where near sufficient to block out the harmful smaller dust particles caused by smoking, and owning pets. For this you will need a separate air purifier machine that resides in a room or rooms in your home.
Before you buy make sure that you research the many different filters that are available, because filters vary in their technologies as well as their size.
What Are the Best Air Filters
HEPA (High Efficiency Particulate Air) filters are one of the the best and are used in hospitals and clean rooms, but the actual efficiency of HEPA air filters for particles as small as 0.3 microns is more like 80% than the 99.9% claimed, mainly due to leakage between the filter and the frame. Even though these are now becoming popular the same high performance associated with these filters cannot be found in regular filters. So ensure that you check the details.
Another type of filter is the ULPA (ultra low penetration) filters claim to be better than HEPA because they have a higher micron rating to get rid of even smaller particles. Although these ULPA filters have the potential to enhance the purity of the air, in actual fact, the denser the filter is can cause a loss in air flow, which means that there are less air changes on an hourly basis.
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