Which type of filter is most effective at removing odors?

An activated carbon filter is the most effective at removing odors due to its unique structure and properties. Activated carbon is made from carbon that has been processed to create a very porous surface, which gives it a large surface area for adsorption. As air passes through the activated carbon filter, molecules of odors and certain gases adhere to the surface of the carbon particles. This process effectively traps these odor-causing compounds, which is why activated carbon filters are commonly used in applications where odor control is crucial, such as in air purifiers, HVAC systems, and refrigeration units.

In contrast, HEPA filters are designed primarily to capture particulate matter such as dust, pollen, and pet dander but do not effectively remove odors because they lack the chemical adsorption capacity of activated carbon. Fiberglass filters are mainly used to protect equipment from larger particles and do not capture odors effectively either. Electrostatic filters utilize electrical charges to attract particles, but they also do not handle odor removal as effectively as activated carbon filters do.