Air Filters - Reduce Dust And Prevent Allergies

Written by Norene Anderson
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Air filters are available for various types of air purifying systems. There are approximately 18 million hay fever diagnoses in adults and over seven million in children every year. Asthma affects more than 17 million people in the Unites States. Almost five million children suffer from asthma accounting for 10 million days of missed school every year. Many of these children end up in the hospital for relief of symptoms. The cost of treating asthma exceeds $11 billion every year.

This makes it very important to provide the very best air quality in the home or office. Air filters for the home vary in composition, size, and use. The efficiency of filtration is measured in an efficiency rating known as MERV (Minimum Efficiency Reporting Value). The higher the number, the better the efficiency of filtration.

What Is in the Air?

It is hard to imagine that the air you breathe has particles in it that are so small you cannot see them. The air particles are measured in microns. A micron is 1/1000 millimeter. A hair is 100 microns wide. The tiniest airborne contaminate particle of 1-3 microns can be a huge obstacle if it produces an allergy attack or viral illness.

For air filters to be effective, the MERV rating should be 12. This means it has an 80 percent or higher efficiency on particles 1-3 microns in size and better than 90 percent on particles that are 3-10 microns. There are filters that measure as much as nearly 98 percent effective on the 3-10 micron particles. The need for improving the indoor air quality has led to the development of a step beyond the traditional air purifier.

Air Filters Let You Breathe Freely

It is one thing to remove lint and heavier dust particles. It is another to remove mold spores, bacteria, and odors from the air. The introduction of UV light acts as a germicide to provide protection from bacteria. Some air filters are used as pre-filters in units with a multi-system approach for trapping and destroying infiltrates.

Several things should be taken into consideration before purchasing air filters. One thing to consider is the purpose for filtration. If the main concern is for odor and smoke control, a different air filter can be used than in a home with an asthmatic needing pollen, pet dander, mold, and other pollutants removed from the air.

Many Air Filters to Consider

Electrostatic air filters are designed to attract and hold dust particles. These filters must be replaced per the manufacturer's guidelines in order to be effective. They can be installed in air conditioner and heating units. They also come in an air cleaner unit designed for freestanding use.

Before buying any unit or filter to clear the air of offending pollutants, make sure you are getting the very best. Check the MERV rating and buy high-end filters for the best air control. You should also buy for the proper room size or total square feet if it is a total home air cleaner. For an air filtering system to work effectively, it must match the recommended space limits.

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