PCU Product Brochure · Rev B, October 2026

Filter smoke and grease before they leave your kitchen.

Molitron’s Pollution Control Unit (PCU) is a UL Listed stainless-steel filter unit that installs in your kitchen exhaust duct, between the hood and the fan. Three dry filter stages capture smoke particulate and grease vapor, with no water, pumps or chemicals.

Request a quote Download PDF Print

EPFA-84, rendered from Molitron’s 3D model

3dry filter stages
1,800–10,800CFM across 11 models
304stainless steel, fully welded
UL 8782Listed, File MH45752

Smoke and cooking odor from a kitchen exhaust can become a neighborhood nuisance, and visible emissions can draw attention from local authorities. The PCU treats the exhaust inside the duct, before it reaches the fan and the open air.

Three stages, one direction.

Exhaust from the hood enters the PCU and passes through three banks of filters in turn, pre-filters first, before it reaches the fan.

Grease
Smoke particulate
Cooking odor
EPFA-84 with its top cut away, rendered from Molitron’s 3D model; particles are illustrative. Standard filtration is not comprehensive odor treatment; where odor is part of the project, carbon filters or Molitron’s MOAS can be evaluated.

F1
Pre-filter MERV 9
Multi-pocket pre-filters are the first bank the exhaust meets, catching the larger particles and grease.
F2
High-efficiency filter MERV 14
Multi-pocket high-efficiency filters capture the fine smoke particulate and grease vapor that pass the pre-filter.
F3
Final stage MERV 14 or carbon
A second high-efficiency bank, or optional carbon filters when odor treatment is part of the project. Carbon replaces F3; it does not add a fourth stage.

The PCU with its access doors off: orange pre-filters in F1, then green high-efficiency filters in F2 and F3. — Doors off: orange pre-filters in F1, then green high-efficiency filters in F2 and F3.

Find your model.

Eleven models, EPFA-24 through EPFA-144, share one 63-inch length. Width sets the airflow. Enter yours, or pick a model.

Your exhaust airflow

CFM

Your hood supplier or mechanical engineer can give you this number.

Recommended model

EPFA-60

Planning airflow: 4,500 CFM
Footprint: 60 × 63 in.
Approx. weight: 550 lb
With carbon: adds 180 lb

Planning values only. Molitron confirms the model with you for each project, including hood, duct and fan conditions.

PCU models (planning values)
Model	CFM	Width	Approx. weight	Carbon adds
EPFA-24	1,800	24 in.	250 lb	72 lb
EPFA-36	2,700	36 in.	350 lb	108 lb
EPFA-48	3,600	48 in.	450 lb	144 lb
EPFA-60	4,500	60 in.	550 lb	180 lb
EPFA-72	5,400	72 in.	650 lb	216 lb
EPFA-84	6,300	84 in.	750 lb	252 lb
EPFA-96	7,200	96 in.	850 lb	288 lb
EPFA-108	8,100	108 in.	950 lb	324 lb
EPFA-120	9,000	120 in.	1,050 lb	360 lb
EPFA-132	9,900	132 in.	1,150 lb	396 lb
EPFA-144	10,800	144 in.	1,250 lb	432 lb

Indoors or on the roof.

The PCU goes wherever your exhaust path allows, as long as it can be reached for service.

In the exhaust path: Anywhere between the kitchen hood and the exhaust fan, with the inlet from the kitchen and the outlet toward the fan.
Indoors or on the roof: Hung from the hanger angles at each top corner, or set on a code-approved roof curb by the installing contractor.
Footprint: Model width × 63 in. long. Every model shares the 63-inch length.
Service side: 30 in. of free space in front of the access doors.
Other sides: 18 in. to combustible materials and building insulation, or zero clearance to noncombustible materials.
Above a ceiling: A permanent service platform, level with the bottom of the unit, is required.

Plan view, EPFA-84, with its service and side clearances. *To combustible materials and building insulation; zero to noncombustible materials.

Easy to live with.

A status panel in your kitchen or office tells your staff when the filters need attention. Tap a light to see what it means.

Every four weeks, inspect and service the filters.
Blinking red means service now, whatever the date.
Replacement filters come from Molitron, matched to the originals.
Cleaning is a steam clean of the stainless interior.

The exhaust fan is on.

Normal running. Nothing to do but keep to the four-week filter inspection.

Green: the exhaust fan is on. Blinking red: service is needed now; inspect and replace grease-laden filters.

Built and listed.

Enclosure: 18-gauge Type 304 stainless steel, fully welded.
Access: Three removable, gasketed stainless access doors. Doors on both sides are optional.
Fire protection: Fire-suppression pre-piping from Molitron, ready for ANSUL or another brand you select.
Drains: Three cleaning drains, piped by others to the grease interceptor.
Monitoring: A wall-mounted status panel comes standard. The unit’s controls take a 120 VAC supply, by others.

Plan your project.

Tell us your airflow, where the unit can go, and whether odor is part of the brief. We reply the same business day, and within one business day at most.

Request a quote Read the full manual

303-969-8888 · cleanair@molitron.com · molitron.com

Scan for the live brochure, with the model picker and animations.

PCU Product Brochure, Rev B, October 2026. Planning information, not for construction. Specifications may change; confirm current details with Molitron.