The Most Common Air Filters for Commercial Filtration Systems

All filters for commercial HVAC systems and air filter systems must meet specific IAQ standards. The ASHRAE developed these standards because the air filtration industry needed guidelines for efficiency. As a result, after all, commercial air filters are manufactured, they get a MERV rating. The MERV rating measures how efficiently a filter removes dust and debris from the air. In the commercial air filtration industry, fiberglass filters, pleated filters, and HEPA filters are the most popular options for commercial filtration systems. From a performance standpoint, each of these filters can only trap a certain number of particles since they all have a different MERV rating.

Fiberglass Filter
A fiberglass filter is basically a throwaway filter. When this filter is manufactured, many fiberglass fibers are layered. Usually, many manufacturers mount each fiberglass filter against a metal grate during the manufacturing process. This tactic adds a layer of support and strength.

Pleated Filter
Pleated filters and polyester filters have the same characteristics, and they’re designed like fiberglass filters. The only major difference is that pleated and polyester filters can capture more dust particles since they have a stronger resistance to airflow.

HEPA Filter
HEPA filters can trap very fine dust particles that float in the air. Many contractors who work for the United States Department of Energy only use HEPA filters that meet strict DOE standards.

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