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.
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 |
RMS-250 |
RMS-800 |
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) |
|
|
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 |
|
|
* Other voltage configurations available.
** Stainless steel available as an option.
081425