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Why Is It Recommended To Replace Pleated Air Filters Every 3 Months?

September 03, 2025
Leading Industrial Filter Manufacturer In Waterloo, Ontario

Pleated air filters are one of the most prominent types of industrial filters. The filter media is folded in multiple pleats and placed in a compact area. This feature allows the pleated air filter to effectively trap most contaminants and particles in the air. While this boosts the filtration efficiency, the truth is that most industrial air filter manufacturers recommend a maximum of 90 days or three months for a pleated air filter, after which, they should be promptly replaced. What is the logic behind this guideline, and how well do pleated filters fare in front of cleanable air filters? This blog answers these questions in detail.

 

Why Pleated Air Filters Need Replacement?

 

Ensuring Proper Airflow

 

One alleged drawback of a pleated air filter is that its pleats can compromise airflow. In order to pass through so much surface area, it is necessary to increase airflow and air pressure. Therefore, when it is nearly clogged, the airflow is restricted even further, leading to an even bigger increase in air pressure, which can be detrimental to a system.

 

Poor Energy Efficiency

 

In order to compensate for the decreased air flow, the HVAC system will consume more energy to stay operational. Thus, this is not ideal from an energy efficiency standpoint.

 

Are Cleanable Air Filters Better Than Pleated Air Filters?

 

Clenable air filters are typically panel filters or some other type of filter media. While on face value, they can accommodate better air flow than pleated air filters, in reality, their effectiveness is heavily compromised. Firstly, their filtration efficiency is not as high as pleated air filters. Secondly, even though they can be washed, their lifespan is shorter than their pleated counterparts. Typically, cleanable air filters only last 30 days or more. 

 

Therefore, pleated air filters are a better industrial filter option as long as airflow is not a major factor. However, for optimal performance and energy efficiency, they too should be replaced every 3 months or so. 

 

To know more about high-performance industrial filters, filter elements, and filtration solutions, contact us at Dynamic Filtration Ltd. today. As a leading industrial air filter manufacturer, our collection includes panel filters, pleated air filters, welding filters, custom filters, and much more. Call us at 519-886-0749 for more details.



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