While you can choose between several different air filters, most are disposable. However, there are also washable filters, which can be used over again. This is an economical choice, as disposable filters don’t expose the user to trapped contaminants. Typically, air filters are sized in nominal and actual sizes, with nominal being rounded up to the nearest inch and actual being the exact size of the filter. Filters can range in thickness from less than one inch to six inches. Hop over to here https://www.discountfilterstore.com/types-of-air-filters.html/

HEPA air filters have the highest level of effectiveness in purifying indoor air. HEPA filters have a MERV rating of 16 and can filter both large and small pollutants. These filters need to be replaced every few years, but they are highly efficient in capturing both small and large particles. HEPA air filters are washable, but they aren’t ideal for removing odors. Moreover, they are prone to sedimentation, which reduces their effectiveness over time.
The most commonly used type of air filter is the media filter, which is made of thick cotton material attached to a strong metal grid. Although media filters tend to be the least expensive and easiest to install, they may not be the best solution for all applications. These filters are not effective against odors or dust, and may require regular replacements. You can also opt for permanent pleated filters, which are the most expensive but most efficient option.
Foam air filters are made of engineered porous foams. These materials include polyurethane, polyester, and combinations of the above. These filters feature higher MERV ratings, longer filter life, and even washable options. Electrostatic filters are another type of air filter that uses an electrostatic charge to capture airborne particles. However, they have the disadvantage of not trapping larger contaminants. As the air passes through the depth of the foam filter, it gradually becomes more purified.
Fiberglass air filters are typically the least expensive type, and are disposable. In addition, these filters are more expensive and require replacement every year. Because of their low MERV rating, fiberglass air filters are only effective against large particles such as dust, but they do not work as well against allergens and pollen. Therefore, it’s important to compare the MERV rating of fiberglass air filters and choose the best one for your needs.
UV filters are great at eliminating bacteria and viruses, but are not as effective at screening out dust and other pollutants. They typically work together with HEPA air filters and other filters in a multi-stage filtration system. They are particularly effective at eliminating mold spores and bacteria, but they do not do much against dust and other particles. Usually, UV light air filters pair well with HEPA filters to remove the largest amount of airborne particles simultaneously.
MERV ratings are another way to compare air filters. MERV is a rating system developed by the American Society of Heating and Refrigerating Engineers that tells you how effective the filter is at removing small airborne pollutants. As a general rule, the higher the MERV rating, the more effective the filter is. But, there is no magic number that can compare two filters of the same MERV rating