Compare Filter Quality
|Filter Quality||Filters 90% of airborne particles||Filters 95% of airborne particles||Filters 98% of airborne particles|
|Description||Great for homeowners looking to catch some of the bigger annoyances, like dust and pollen particles.||Awesome for those needing to catch smaller particles like pet dander in addition to dust and mold. A 'must' for pet owners.||Perfect for folks who want to catch all the small particles they can, even some of the smallest ones like cooking oil and cigarette smoke.|
The majority of filters come labelled with size measurements that can be found along the sides of the filter edges. Most of the time the dimensions are rounded up or down to the nearest whole or half numbers to make it easier to order replacements. Filters within .25" or less of your existing filter are typically interchangeable.
MERV (Minimum Efficiency Reporting Value)1 is a measure of filter efficiency. The MERV value takes information on the efficiency of the filter against a range of particles from coarse (such as pollens) to fine (such as smoke), then boils it down into one easy-to-understand number. The MERV number can be used to compare filters made by different manufacturers as long as testing conditions, such as air speed, are the same.
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