What You Should Know About Air Filters

When it comes to selecting an air filter, there are a few things you should know. Read this article to find the best air filter for your home. Then, shop on https://www.amazon.com/BNX-20x20x1-MERV-Filter-Pack/dp/B09XC3RQ3J to find the best deal.


MERV rating

The MERV rating for an air filter is a measure of the filter’s effectiveness at different particle sizes. The chart was created in a laboratory to assess the efficiency of filters of different sizes. The human hair is approximately 70-100 microns in diameter, and the smallest particles visible to the naked eye are around 40 um in diameter. These particles are captured by the filters in the E1 or E2 sizes.

ULPA rating

A ULPA air filter is a type of particle collector that is used to remove airborne particles smaller than 0.4 microns. Compared to HEPA filters, ULPAs collect particles in the range of 0.1 to 4 microns. However, they have a shorter lifespan than HEPA filters, typically lasting between five and eight years. Because of this, they require more air flow than HEPA filters. ULPA air filters require fewer air changes per an hour so they are best suited for facilities with high volume requirements.

Rating CADR

A CADR rating indicates how effective an air filter is at filtering different types and levels of air pollutants. These ratings are determined in a standard room and take into account the distribution of particles. The CADRs are usually measured for three types air contaminants: pollen, smoke, and dust. CADRs can vary by model and filter, but they are all comparable in terms of filtration. High-efficiency filters can remove large amounts of particulate matter and maintain a low airflow rate.

Flat-panel vs. Pleated

Pleated air filters have a greater surface area than standard throwaway ones, which means they can capture more particles. Pleated air filters have a higher rating for MERV, which means they trap more airborne particles. While both types are effective in preventing indoor pollution, they are not all equally efficient.

Washable electrostatic

If you’re tired of throwing away disposable air filters, you may want to consider a washable electrostatic air filter. Unlike metal mesh filters, which rely on multiple layers of metal and a tackifier to hold them together, washable electrostatic air filters utilize woven polypropylene media with electrostatic properties. These woven fibers draw small particles from the air and hold them there until they are removed.