What is the Best 20x30x1 Air Filter?

Learn about the best 20x30x1 air filter for pet owners and allergy sufferers looking to improve their indoor air quality. Find out what MERV rating you need and what type of filter is best.

What is the Best 20x30x1 Air Filter?

For those looking to improve their indoor air quality, the best 20x30x1 air filter is an important consideration. Pet owners and allergy sufferers can breathe easier when they install a Filter King air filter. To make it easier to compare the effectiveness of one filter with another, the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) developed the MERV rating system. This rating system measures how well a filter removes particles from the air.

When buying a pleated air filter, you should consider the number of folds per foot, as they will work best if the number is high. Many 1-inch filters need to be replaced approximately every 90 days, while a 4-inch oven filter, such as the Honeywell Home pleated air filter, can last up to a year. For superior performance, the 20x30x1 MERV 13 can be used in almost any building where better indoor air quality is desired, such as residential commercial properties &, universities, school systems, and government institutions. This 20 x 30 x 1 washable air filter has a stable construction that allows for an easy installation process.

Compared to cheaper basic filters available, medium-efficiency MERV filters such as the Nordic Pure MERV 12 can greatly reduce airborne dust, mold spores, pollen and even smoke. This can help alleviate respiratory ailments according to an NIH review. Oven filters trap dirt and debris that could otherwise reach your HVAC system, leading to parts failure, dirty ducts, and worsening air quality. These are installed on wall-mounted return air grilles (more common in the South) or on the air handler (more common in the Mid-Atlantic and North Atlantic states).

To make it easier to compare different filters, here are two suggested options that take into account MERV ratings and filter types:

  • Nordic Pure 20 x 30 x 1: MERV Rating 6; 12 units
  • Glasfloss 20 x 30 x1: MERV Rating 10; 6 units
These options should help you in your search for clean air. But it's important to remember that these filters are not a means of improving indoor air quality and should not be expected to do so.