What Is a Pleated HVAC Filter and How Does It Work?

What Is a Pleated HVAC Filter and How Does It Work?

Pleated filters are commonly used in residential heating and cooling systems.

Their folded filter media provides more surface area within the same general filter footprint.

Why Is the Media Pleated?

The folds allow filter material to occupy more surface area than a flat sheet of the same overall dimensions.

Different Filtration Levels

Pleated filters are available with different filtration ratings, including various MERV levels.

The appropriate rating depends on the HVAC system and its requirements.

Check the Filter Size

Before purchasing a replacement, verify:

  • Nominal dimensions
  • Thickness
  • System compatibility

Conclusion

Pleated HVAC filters are a common solution for residential air filtration.

Understanding their construction makes it easier to compare different filter options.