CleanRooms InternationalCleanRooms International

Ideal for Pharmaceutical Companies
Gel Deal Style HEPA or ULPA Filter
Replaceable From Roomside

SAM MicroSound GS fan filter units are ideal for pharmaceutical companies, manufacturers of medical devices and companies in highly regulated industries. The SAM GS units feature a gel channel on the upstream side of the final filter which provides a leak-free seal between the filter and the housing.

SAM MicroSound GS units feature a HEPA or ULPA filter replaceable from roomside while the filter housing remains in place.

Housings are fabricated from steel with a white powdercoat finish and include seismic clip suspension points.

The energy efficient N310 motor blower is a low watt backward curved impeller, single phase, permanent split capacitor type motor blower assembly with thermal overload protection. Units are available in 115V (60 Hz), 208-230V (50/60 Hz) and 277V (60 Hz).

SAM MicroSound Fan Filter Units include a 99.99% efficient HEPA filter, 30% ASHRAE pleated type prefilter, seismic clip suspension points, safety switch which disables the unit while servicing, and solid state variable speed control with RFI suppression, allowing the airflow to be fine tuned.

Final filters are protected with a white epoxy diamond pattern grille and are tested according to accepted procedures as described by the Institute of Environmental Sciences (IEST) and/or ISO standards. The standard HEPA filter is 99.99% eff. and an ULPA grade 99.9995% eff. filter is available as an option.

A polystyrene eggcrate grille in an anodized aluminum frame is hinged to open, permitting removal of the filter without removing the unit from the ceiling. Optional perforated stainless steel or aluminum grilles are available.

Other popular options include an 8’ power cord (115 Volt only), 99.9995% eff. ULPA grade final filter, UL 900 filters and duct collar adapters. Refer to the back of this section for more options and accessories.

For horizontal flow applications consult with one of our cleanroom experts in your area, or call the factory for more information.

GS-Style Filter Data: The HEPA Filter is designed for 90 FPM average face velocity @ initial 0.47 w.g. and has a rated efficiency of 99.99% @ 0.3 micron or larger.

An anodized aluminum frame holds the 53mm media which is protected by a diamond pattern white epoxy coated steel grille. Final filters are replaceable from roomside.

Access Port: This port is located in the center of the filter element face and is used for introducing an upstream challenge or measuring static pressure.

Standard Ceiling Size: All 2’ x 4’ models are designed to fit a nominal 2’ x 4’ ceiling grid with a 22.5” x 46.5” standard opening.

Air Flow: Airflow ranges from 340 to 640 CFM for a 2 x 4 unit and 220 to 340 CFM for a 2 x 2 unit. At 90 FPM, CFM is nominal 510 on a 2 x 4 and 220 on a 2 x 2 unit respectively. Airflow for units running at 50 Hz will be about 20% less.

Sound Level: At average face velocity of 90 FPM measured 30” from face of filter, sound level is approximately 54 dba with less than 45 dba ambient sound level. Field conditions, voltage and method of testing could produce different results.

Motor Data
MotorVoltageHzWattsRunning AmpsStart-Up Amps
  1. Running amps will be less on 50Hz
  2. Line voltage can affect actual start-up amperage
Replacement Filters
Mfg. CodeDescription
3022012 x 2 GS Style HEPA Filter, 99.99% eff. @ 0.3 micron
3022042 x 2 GS Style ULPA Filter, 99.9995% eff. @ 0.12 micron
3022142 x 3 GS Style HEPA Filter, 99.99% eff. @ 0.3 micron
3022152 x 3 GS Style ULPA Filter, 99.9995% eff. @ 0.12 micron
3022002 x 4 GS Style HEPA Filter, 99.99% eff. @ 0.3 micron
3022032 x 4 GS Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302190Prefilter 20″x20″x1″, 30% ASHRAE efficient, pleated type
Base Model
(Ordering Information)
Mfg. CodeModel or DescriptionStyleSizeVoltageMotorVariable Speed ControlHEPA FilterWeight
12800*SAM22 MS GSGS2×2115N31070308430220168 lbs. (30.8 kg.)
12801SAM22 MS GSGS2×2208-230N31070391230220168 lbs. (30.8 kg.)
12802*SAM22 MS GSGS2×2277N31070391530220168 lbs. (30.8 kg.)
12803*SAM23 MS GSGS2×3115N31070308430221476 lbs. (34.5 kg.)
12804*SAM23 MS GSGS2×3277N31070391530221476 lbs. (34.5 kg.)
12805*SAM24 MS GSGS2×4115N31070308430220084 lbs. (38.1 kg.)
12806SAM24 MS GSGS2×4208-230N31070391230220084 lbs. (38.1 kg.)
12807*SAM24 MS GSGS2×4277N31070391530220084 lbs. (38.1 kg.)

* UL Listed
Prefilter and Safety Switch are Standard on all Models

Popular Options: (Please choose from the following part numbers when ordering options)
Final Filters:Air Conditioning Mixing Box:
302204 2 x 2 GS ULPA Filter 99.9995% eff.19958 Slanted Top with 10” Duct Collar
302214 2 x 3 GS ULPA Filter 99.9995% eff.19959 Slanted Top with 12” Duct Collar
302203 2 x 4 GS ULPA Filter 99.9995% eff.19947 Square with (2) 10” Duct Collars
308011 2 x 2 GS HEPA UL 90019948 Square with (2) 12” Duct Collars
308010 2 x 4 GS HEPA UL 900Roomside Variable Speed Control:
308012 2 x 4 GS ULPA UL 90019933 CRF Style 110-120 Volt
308013 2 x 2 GS ULPA UL 90019934 CRF Style 208-230 Volt
Prefilters:19935 CRF Style 277 Volt
302197 Extended Life Prefilter 20″ x 20″ x 2″Pilot Light:
Duct Collar Adapters:19702 GS/CRF Style Red Pilot Light – factory mounted in grille frame (Light Indicates Power to Motor)
19950 10” Duct Collar Adapter19703 GS/CRF Style Red Pilot Light w/Pressure Switch – factory mounted in grille frame (Light Indicates Air Flow)
19951 12” Duct Collar AdapterRadial Diffuser Grille:
19952 Side Load with 10” Duct Collar19300 2 x 2 Radial Diffuser Grille
19953 Side Load with 12” Duct Collar19301 2 x 4 Radial Diffuser Grille
19955 10” Top Load Duct Collar AdapterMiscellaneous:
19956 12” Top Load Duct Collar Adapter703902 8’ Power Cord 110-120V Only
Grilles 1/8” Round Perforated: (40% open area)603322 Gasket on Downstream Edge of Unit
19506 2 x 2 CRF Anodized Alum. Grille and FrameMagnehelic Gage: Refer to the Back of this Section
19507 2 x 4 CRF Anodized Alum. Grille and FrameStatic Control: Refer to the Back of this Section
19508 2 x 2 CRF Round Perf w/1/8” Holes, White Powdercoated Grille and Frame
 19509 2 x 4 CRF Round Perf w/1/8” Holes, White Powdercoated Grille and Frame
19511 2 x 4 CRF S.S. Rnd. Perf Grille w/Anodized Alum. Frame
 19512 2 x 2 CRF S.S. Rnd. Perf Grille w/Anodized Alum. Frame
19514 2 x 4 CRF S.S. Perf Grille w/S.S Frame

NOTE: Duct collar adapters #19950 & #19951 may be used without negating the UL listing. All other duct collars, air conditioning boxes, pilot lights, and adding other electrical components negates UL listing.

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