About Air Purifiers

Air purifiers are devices that can be used to purify the air in your home, office, or any other indoor space. The purpose of air purifiers is to reduce the amount of contaminants in the air, and by doing so, improve the quality of the air you breathe. Some common contaminants that air purifiers may remove include dust, smoke, and pet dander.

Information about air purifiers can be a great help to people who suffer from asthma. Asthma patients can breathe purified, cleaner air much easier than air that is filled with polluting or contaminating particles. When deciding about what are the best air purifiers for asthma, you must also take into consideration what elements the asthma patient is exposed to, and what generally triggers his or her asthma attacks. For example, an air purifier that uses a filter to remove large dust particles from the air would work best for an asthma patient in a dusty environment. On the other hand, there is some debate about air purifiers', especially ionic ones, effectiveness for asthma patients, as the ozone output of some ionic air purifiers may actually worsen asthma symptoms and increase asthma attacks.

In order to find a product that is considered the best air purifier, it is important to do some comparison shopping. One key element to compare is the air purifiers' clean air delivery rate, or CADR's. The CADR of an air purifier indicates how much clean air the purifier can deliver per minute. The higher the number, the more effective the air purifier is. Most units will have three CADR numbers, one each for performance in removing smoke, dust, and pollen. The CADR is given in cubic feet, but should not be confused with the air purifier's CFM rating, which only reports the unit's fan speed in cubic feet per minute, and has no bearing on the CADR. To find the best home air purifiers, you should look for those that advertise the unit's CADR, and not just the CFM.

Some reviews about air purifiers can be found online, and can be very useful if you are simply wanting to improve your home's air quality. However, if you are purchasing an air purifier to help treat symptoms of asthma or allergies, you should also discuss air purifiers with your doctor. He or she will likely have some very good recommendations about air purifiers for you, based on previous experiences with other patients who suffer from the same condition as you do.