Quality Polyester AC filters offer high dust arrestance and low resistance when installed in HVAC equipments– where disposable filters are most appropriate. Some models are specially designed for equipment with limited space.
Polyester filters are flame retardant and meet UL 94 HF-1 standards for electronics, NEBS compliant and motor vehicle applications. Available in framed filter assemblies or cut-to-size filter pads.
MERV: Minimum Efficiency Reporting Value
Air Filter efficiency is important, because the higher the MERV rating on a filter, the fewer dust particles and other contaminants can pass through it.
HOW DO I MEASURE THE AC FILTER?
An air filter has three dimensions, height, width and depth. To measure your filter, stand the filter on its side with the pleats running horizontally (parallel to the floor). Height is the vertical dimension from the floor to the top of the filter in this orientation, width is across from left to right, and depth is the thickness of the air filter from front to back. You can also determine these sides based on how the air filter is positioned in the system. Typically, the air filter is positioned in the system with the pleats running horizontally.
Filter depths are standardized but a little misleading. For example, a 1” filter is actually about 1/2” wide, while a 2” filter is about 1 1/2” wide. Measure yours and round that up to the nearest whole number. In other words, if the depth of your filter is 5/8”, you need a 1” filter.
Filter height and depth are the most critical measurements. Measure each dimension to the nearest 1/8”. In general, a filter height of 24" corresponds to a true height of 23 and 5/8 to 23 and 7/8 inches.
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