Dry filtration for kitchen exhaust

EPFAEnviro-Pak Filter Assembly

EPFA filters smoke particulate and grease vapor from commercial kitchen exhaust in three dry stages. Filtration needs no process water, circulation pumps or chemical dosing.

Request a quote See the filter stages

Filtration: 3 stagesDry, MERV 9 to MERV 14
Capacity: 1,800–10,800CFM across eleven models
Construction: Type 30418-gauge stainless steel

UL Listedunder File MH45752 · Models EPFA-24 through EPFA-144, investigated to the UL 8782 Outline of Investigation for Pollution Control Units for Commercial Cooking OperationsListing scope

EPFA stainless-steel filter assembly with its three access doors closed. — Photograph · EPFA filter assembly

EPFA filter assembly with its access doors open to show the filter stages. — Photograph · EPFA filter assembly

Where EPFA fits

EPFA sits in the exhaust path between the kitchen hood and the fan. It is Molitron’s pollution control unit for commercial kitchen exhaust.

A commercial-kitchen exhaust project needs dry filtration for smoke particulate and grease vapor
The project team can coordinate duct, support, service access, drains, fire suppression, electrical monitoring, fan selection, and AHJ review
Indoor or outdoor equipment placement is being evaluated within the exhaust path
A project-specific optional D-Mark carbon stage is being evaluated for an odor-treatment objective

See every stage before it’s in your exhaust path.

Follow the guided tour, or open the interactive 3D model: check the fit for your project, or take it apart yourself. It runs in your browser.

3D illustration of an EPFA in a rooftop exhaust run, between the riser from the kitchen hood and the exhaust fan. — From the EPFA 3D viewer · a typical rooftop installation

Three dry filter stages

The exhaust passes through three stages of filter media behind removable, gasketed access doors.

F1 · Pre-filter
A MERV 9 pre-filter is the first stage in the exhaust path.
F2 · High-efficiency stage
A MERV 14 high-efficiency stage follows the pre-filter.
F3 · Final stage
Standard MERV 14 media, or an optional D-Mark carbon stage where a project has an odor-treatment objective.

See the three stages in 3D

Does EPFA provide odor control?

EPFA’s standard stages address smoke particulate and grease vapor. The final stage may use MERV 14 media or optional D-Mark carbon; broader odor-control needs may call for MOAS odor abatement.

Stacked EPFA equipment connected to ductwork and a fan on a commercial rooftop. — Stacked EPFA units in the exhaust path on a commercial rooftop.

Plan the installation

Coordinate duct, support, service access, drains, fire suppression, monitoring and fan selection with the project team and the authority having jurisdiction (AHJ).

Placement: Indoor or outdoor within the exhaust path, subject to project-specific coordination and current installation requirements.
Access: A 63-inch enclosure with three access doors; doors on both sides are optional.
Clearances: 30 in. on the service-access side. Other sides: 18 in. of air space to combustibles and building insulation, or zero clearance to noncombustible materials.
Monitoring: The system monitor panel is standard equipment. We recommend a visible location in the kitchen or GM’s office. A green light means the fan is on. A blinking red light means inspect the filters and replace them as needed.
Fan selection: Allow 1.54 in. w.g. initial EPFA resistance, plus hood, duct, and other system losses. Use a backward-inclined utility fan with adjustable RPM, listed for kitchen exhaust applications.
Service: Inspect and service the filters every four weeks, and respond promptly to a blinking red service light.

Read the operation and maintenance guide See it in the exhaust path in 3D See service access in 3D

Eleven models

Model, configuration, fan selection, installation and AHJ acceptance remain project-specific.

EPFA model capacity, width, approximate unit weight, filter quantities, and optional D-Mark carbon added weight
Model	CFM	Width	Approx. unit weight	Pre-filter qty.	High-efficiency qty.	Carbon added weight
EPFA-24	1,800	24 in.	250 lb	1	2	72 lb
EPFA-36	2,700	36 in.	350 lb	2	4	108 lb
EPFA-48	3,600	48 in.	450 lb	2	4	144 lb
EPFA-60	4,500	60 in.	550 lb	3	6	180 lb
EPFA-72	5,400	72 in.	650 lb	3	6	216 lb
EPFA-84	6,300	84 in.	750 lb	4	8	252 lb
EPFA-96	7,200	96 in.	850 lb	4	8	288 lb
EPFA-108	8,100	108 in.	950 lb	5	10	324 lb
EPFA-120	9,000	120 in.	1,050 lb	5	10	360 lb
EPFA-132	9,900	132 in.	1,150 lb	6	12	396 lb
EPFA-144	10,800	144 in.	1,250 lb	6	12	432 lb

Unit weights are approximate. Carbon added weight is additional when the optional D-Mark carbon stage is selected. Filter quantities are total quantities rather than per-stage counts. Scroll sideways on small screens to see every column.

Specifications

Final selection depends on airflow, cooking equipment, discharge and project requirements.

Listing	UL Listed under File MH45752 · Models EPFA-24 through EPFA-144 · Investigated to the UL 8782 Outline of Investigation for Pollution Control Units for Commercial Cooking Operations
Filtration	F1 MERV 9 pre-filter · F2 MERV 14 high-efficiency stage · F3 standard MERV 14 or optional D-Mark carbon final stage
Model range	EPFA-24 through EPFA-144 · 24–144 in. widths · 1,800–10,800 CFM
Construction	18-gauge Type 304 stainless steel · fully welded, single-wall enclosure · removable gasketed access doors
Footprint and access	63 in. enclosure length · width W follows the model suffix · three access doors · both-side access optional
Monitoring	The system monitor panel is standard equipment. We recommend a visible location in the kitchen or GM’s office. A green light means the fan is on. A blinking red light means inspect the filters and replace them as needed.
Placement	Indoor or outdoor within the exhaust path, subject to project-specific coordination and current installation requirements
Minimum clearances	30 in. on the service-access side · Other sides: 18 in. air space to combustibles/building insulation, or zero clearance to noncombustible materials
Fan-selection input	Allow 1.54 in. w.g. initial EPFA resistance, plus hood, duct, and other system losses. Use a backward-inclined utility fan with adjustable RPM, listed for kitchen exhaust applications.
Service	Inspect and service the filters every four weeks, and respond promptly to a blinking red service light.

Documents

Current planning and service references for the project team.

Read onlineInstallation, operation & maintenanceReceiving, installation coordination, monitoring, filter service, and equipment records.

Equipment and installations

Photographs of EPFA filter assemblies and installed systems. Select a photo to enlarge it.

Where EPFA is installed

Selected installation history across restaurants, airports, hotels and other commercial kitchens.

UNO K Street, DC
Apron Kitchen, Denver International Airport
Sheraton Hotel, CO

Names identify installation history and do not imply endorsement, sponsorship, or a current commercial relationship.

See all installation history

MOAS odor abatement

Need odor treatment too?

MOAS treats cooking odor inside the exhaust duct with a fine mist of Odor Neutralizer Solution from two remote nozzles. Some projects use both: EPFA filters the exhaust and MOAS treats the odor.

Explore MOAS Compare MOAS and EPFA

Closed stainless-steel MOAS odor abatement cabinet.

Plan a project with EPFA.

Share your location, cooking equipment and exhaust layout. We reply the same business day, and within one business day at most.

Request a quote Or call 303-969-8888