Replacement Filters

Written by Norene Anderson
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Replacement filters are easier to choose than you might think. There are many styles and materials to consider and that can be confusing, but it does not need to be. A few simple guidelines will make it easy to find the filter that will provide you with the kind of clean air you desire and deserve.

When choosing replacement filters, always consider only those suited or designed for your air filtration unit. This may sound obvious, but people will try to make a filter work with a unit just because it is a better filter. Cutting down a filter or forcing it into the filter slot will only cause problems later. If you choose a filter with the wrong air return ratio, you could harm your heating and cooling system.

Choices for Replacement Filters

Replacement filters can be basic, pleated, electrostatically charged, HEPA, and many other types or combinations. The best way to choose the one right for your home is to determine the pollutants you need to capture. Then you can read the indicators on each filter until you find the one that covers your particular pollutants. Pay attention to the MERV rating to find the size and efficiency of particulate removal.

Also, look for the circulatory output. The more times the unit circulates the air per hour, the cleaner the air will be. Any time air is allowed to remain stagnant in a room, it collects more junk to be filtered. Continual filtration will keep the particulates to a minimum. Less infiltrates means less opportunity for allergens to irritate sensitive noses.

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