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Recirculating Molecular Odor Scrubber


Industrial Odor Control’s Recirculating Molecular Odor Scrubbers (RMS) deliver indoor vapor-phase odor removal for commercial spaces that cannot or prefer not to vent outdoors. Each self-contained unit pulls contaminated room air through a deep bed of activated carbon and recirculates cleaned air back into the space — reducing odor complaints and improving workplace comfort. While engineered for recirculation, these systems can also be configured to duct outdoors if your application requires exhausting treated air.

Why Choose Our Indoor RMS Units?

Vapor-Phase Carbon Filtration

Targets hydrogen sulfide, mercaptans, amines, and VOCs common in industrial and municipal environments.

Recirculating or Outdoor Venting

Use in closed-loop mode to maintain conditioned air, or connect to ductwork to vent treated air outdoors.

Low-Touch Maintenance

Front-access panels simplify carbon media and pre-filter changes to minimize downtime.

Industrial Build

Durable construction for continuous operation in demanding facilities.

Commercial Applications

  • Wastewater treatment plant control rooms & pump station buildings
  • Labs, QA/QC rooms, and product development suites
  • Food, chemical, and materials processing areas
  • Evidence rooms, morgues, and medical storage spaces
  • Industrial utility rooms, electrical/mechanical enclosures

How It Works

  • Room air enters the scrubber through a particulate pre-filter to protect the carbon bed.
  • A deep activated carbon media section adsorbs odor-causing vapors (vapor-phase treatment).
  • Cleaned air is either recirculated back into the space or ducted outdoors, depending on setup.

Selecting a Unit

  • Room size & odor load: Match airflow capacity and carbon volume to space volume and odor intensity. Use our Odor Adsorber Sizing Calculator to size your odor adsorber.
  • Contact time: Ensure adequate dwell time in the carbon bed for effective adsorption.
  • Venting preference: Decide whether to recirculate air indoors or exhaust it outdoors after treatment.

Need help sizing an RMS for your room and odor profile? Our team will recommend a configuration and media schedule based on your application and airflow needs.

Request RMS Recommendation

Keywords: indoor odor scrubber, recirculating molecular odor scrubber, vapor-phase carbon filter, commercial odor control, activated carbon air scrubber, ducted odor scrubber

Recirculating Molecular Air Scrubber (RMS) Comparison Chart


Feature

RMS-100
Brochure | Data/Cut Sheet

RMS-250
Brochure | Data/Cut Sheet

RMS-800
Brochure | Data/Cut Sheet

Pre-Filter

Merv-7 Prefilter

Merv-7 Prefilter

Merv-7 Prefilter

Cubic Feet of Carbon

1 cf (30 lbs)

1.8 cf (50 lbs)

7.5 cf (250)

Carbon Contact Time

.6 seconds

.44 seconds

.56 seconds

Airflow

100 cfm

250 cfm

800 cfm

Sample Air Exchange

2.5 air exchanges per hour in 15’x15’x10’ room

6.5 air exchanges per hour in 15’x15’x10’ room

2 air exchanges per hour in 50’x50’x10’ room

Voltage

110/1/60*

110/1/60*

220/1/60*

Height

31” (78.74 cm)

38” (96.5 cm)

60-1/8” (152.3 cm)

Diameter

15” (38.1 cm)

15” (38.1 cm)

24” (61 cm)

Weight (empty)

40 lbs

45 lbs

160 lbs

Made From

HDPE

16-gauge carbon steel**

16-gauge carbon steel**

Fan/Blower

Terrabloom ECMF-150

Terrabloom ECMF-250

Industrial Pressure Blower

Variable Speed Fan

Yes

Yes

No

Decibel Level

50 db

77 db at 5’ full speed

80 db at 3’

Inlet

Radial up-flow filter with 3 rows of .1” Inlets evenly spaced with 40% open space (20.7 square inches)

  • Radial up-flow filter with .125” Inlets spaced on centers 3/8” with 40% open space
  • Inlet to carbon bed- surface area 460 square inches
  • Inlet to air plenum –surface area 230 square inches
  • Radial upflow filter with .125” Inlets spaced on centers 3/8” with 40% open space
  • Inlet to carbon bed‐ surface area 1447 square inches
  • Inlet to air plenum –surface area 290 square inches

Outlet

6” pipe (12.5 Sq in.)

10-inch – surface area 78.54 square inches

5‐inch pipe – surface area 19.6 square inches

Refill Port

Removeable Lid

2” fill port

4” fill port

Casters

No

Yes

Yes

Magnehelic Differential Pressure Gauge

No

Yes

Yes

Other Features

Inner air plenum for even carbon wear

 

  • Built in skid for easy lifting
  • 4 Lift points for raising and lower to overhead platforms

 

 

* Other voltage configurations available.
** Stainless steel available as an option.

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