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Air Purifier Ratings---6 Answers to Questions About Rating Air Purifiers

By Debbie Davis

Republish: EasyPublish™ Published: 11Nov2010 Word count: 478 Viewed: 140 time(s) Get Free Content For Your Site

Determining which air purifier is best for your situation can be overwhelming with literally hundreds of different types available on the market. But deciding which features you need and comparing units with the same features will make the choice a lot easier. Here are answers to 6 of the most frequently asked questions about how to rate air purifiers.

1. Does the number of filters in a cleaner really make a difference? A cleaner with no filter or one filter will need a lot more maintenance and filter replacement than one that has multiple filters. So absolutely, the more filters a cleaner has the more effective it will be.

Notice whether it contains pre-filters. These filters are excellent at trapping fairly large particles you can see (like hair and dust), and prevent the filters for minute particles from getting clogged unnecessarily quickly. For best results both large and medium particle pre-filters are recommended.

2. What type of filter is best at removing particles? High efficiency particle arresting (abbreviated as HEPA) filters are the most effective at particle removal. This is the same technology that hospitals use to keep the air clean. By definition this type of filter must be able to remove 99,997 out of every 10,000 airborne particles that are.3 microns or greater. And a micron is defined as one millionth of a meter.

This type of filtration is recommended for those who suffer from allergies that are triggered by airborne irritants such as dust, dust mites, mold and mildew spores, pet dander, and seasonal pollen.

3. Which filter is most effective at removing gases, chemicals and odors? In a word, carbon has proven to be the best at absorbing gaseous pollutants. A filter that is carbon-based with additives that target things such as chemicals in nail salons, or urine odor in kennels can really clear the air of these noxious odors.

4. Is a cleaner that uses low levels of ozone safe? The United States Environmental Protection Agency (EPA) has ruled that any amount of ozone produced is unsafe. And the state of California has banned the production of ozone-producing cleaners.

5. How often should the filter need to be changed? The ideal purifier has a combination of filters that can effectively scrub the air and still not need to be replaced for years. With the proper combination of filters, your cleaner should be able to last at least 5 years without needing a replacement filter.

6. How many hours a day should the unit operate? A unit with a split capacitor motor will allow your cleaner to be on duty 24 hours a day. This will continually keep pollutant levels low and indoor air quality high.

Being able to airborne pollutants out of your air is what an air purifier should do. Choosing one that has high ratings in each of these categories will insure that you bring home one that will work well for you.

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