Micro Shield®Mini Pleat Filters

Columbus Industries’ catalog of filtration products is performance-engineered to meet the HVAC market’s ever-evolving filtration needs. CI’s dedicated Research and Development team works tirelessly to develop the innovative, best-in-class products that our customers depend on.

As filtration efficiency demands grow, CI’s Micro Shield mini-pleated filters offer peak efficiency and dust-holding capacity with minimal air resistance. As a result, Micro Shield products provide high-efficiency filtration while creating substantial energy and cost savings.

Micro Shield 2″ and 4″ Mini-Pleats

CI Micro Shield mini-pleated Filters are an economical choice for extended surface, high-efficiency air filtration requirements. Each filter utilizes a technologically advanced media that incorporates a dual-layer, gradient-density fiber structure that results in exceptionally low airflow resistance, at the highest efficiency levels – reducing both energy and operating costs.

These high-performance filters will improve indoor air quality and remove contaminants from HVAC environments. CI Micro Shield mini-pleated filters are engineered to protect both expensive HVAC equipment and people from dirty air and its damaging effects. The user-friendly filter is also fully incinerable, lightweight, durable and easy to install.

Looking for LEED certification? CI Micro Shield mini-pleated filters are the perfect solution if you want to specify or upgrade your current filtration to meet LEED certification requirements. With these high-performance filters, your facility can gain points toward LEED certification — without incurring large operating cost increases. CI Micro Shield Mini-Pleated Filter meets efficiency standards outlined in the LEED program for new construction and existing buildings.


Initial Pressure Drop


2″ Die Cut Mini-Pleat 15/14A .30″w.g.
4″ Die Cut Mini-Pleat 15/14A .21″w.g.
  • Upstream, downstream, and side gasketing available
4″ Plastic Frame Mini-Pleat 15/14A .21″w.g.
  • Header or non-header
  • Upstream, downstream, and side gasketing available


  • Provides lower initial resistance
  • Provides lower energy consumption and operating cost
  • Meets requirements for LEED certification
  • Provides an economical and high efficiency upgrade for most applications


  • Commercial and industrial facilities
  • Government and educational facilities
  • Paint booth/finishing
  • Hospitals, research labs and pharmaceuticals
  • Airports
  • Electrical manufacturing
  • Power generators

Technical Information

  • Available in variety of standard sizes
  • Available in MERV15/14A
  • Tested in accordance with ASHRAE Test Standard 52.2-2017
  • UL Standard 900 tested and approved
  • Temperature rated up to 160˚F
  • Fully incinerable

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