Ducted Ceiling Module (DCM)


The Envirco Ducted Ceiling Module is ideal for applications where minimal installation space is available and ultra clean air is a requirement. The DCM high efficiency ceiling module consisting of anodized aluminum frame, a galvanized back plate, 41-mm filter pack, polyurethane encapsulating sealant and dual access ports. Maximum module depth shall not exceed 4.73”.

The Envirco DCM offers:

  • High efficiency leak free particulate control. Available efficiencies include 99.99% when evaluated on particles 0.3 micron and 99.9995% when evaluated on most penetrating particle size (MPPS).
  • A low profile allowing installation in a minimal depth conserving space for manufacturing or other room components. Constructed of light weight extruded aluminum profiles and joined at the corners with Klip-Lok™ mechanism the DCM installs in any standard 1½ “ or 2” T-bar grid system. Seismic tabs are included.
  • A 41-mm filter pack, completely encapsulated in polyurethane sealant that is thermally/chemically stable to ensure minimal out-gassing and maintains excellent mechanical properties ensuring high-purity air for the most demanding environments over the life of the filter.
  • A media configuration that is optimized through Controlled Media Spacing (CMS™) resulting in a lower pressure drop than other media pleating techniques. Continuous glass filament separators, encapsulated in a stabilizing adhesive, promote uniform airflow while eliminating media to media contact and fiber break-off associated with other media pleating techniques.
  • An adjustable diffusion disc that promotes uniform airflow over the entire filter and allows filter-to-filter air balancing. Roomside adjustment is accomplished through a port in the center divider. An additional port is included for pressure drop measurement and/or aerosol challenge introduction.
  • Either a 10” or 12” collar connection. The collar includes an integral continuous raised ridge to assist in securing flexible ducting.
  • An integral white epoxy powder-coated steel grille with 62% open area to promote proper airflow an protect the filter element.


  • Filter housing shall be constructed of an anodized aluminum frame mated with a galvanized steel back plate. It shall be designed for installation into a T-Bar ceiling grid system.
  • The media pack shall have a maximum depth of 41-mm (1.61”) and shall have an efficiency of (95 @ 0.3 micron, 99.99% @ 0.3 micron, 99.9995% @ MPPS).
  • Pleat spacing shall be by continuous glass filament separators to prevent media-to-media contact and promote uniform airflow through the media pack.
  • The media pack shall be completely encapsulated in a polyurethane sealant creating a rigid self supporting pack. The sealant shall be low out gassing, fire-retardant and self-extinguishing.
  • The module shall include an adjustable airflow diffusion disc that is adjustable from the room side through an access port.
  • A second port, accessible from the room side, shall be provided to allow aerosol test challenge introduction or pressure drop measurement.
  • Housing shall be supplied with a (“10”, 12”) collar that includes an integral continuous raised ridge for duct side connection to air system.


  • The filter shall be identified on a label indicating minimum efficiency, tested airflow and pressure drop. The unit shall be bar code serialized for individual unit identification.
  • The module shall be listed by Underwriters Laboratories as UL 900.

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For additional information, please contact your local representative.