CleanRooms InternationalCleanRooms International

All Stainless Steel Construction

Stainless Steel SAM MicroSound Series Fan Filter Units feature housings fabricated from #304 stainless steel with #4 brushed finish.

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.

The blower is a 115 volt low watt AC backward curved impeller, 60hz, single phase, permanent split capacitor type motor blower assembly with thermal overload protection. Other motor and voltage options are 208-230 (50/60 hz) and 277 (60 hz).

NCR Style final filters feature a stainless steel frame and are protected with a stainless steel round perforated grille on the downstream side.

SAM GS Fan Filter Units feature a HEPA or ULPA filter replaceable from roomside. Final filters inside the housing are standard GS style with anodized aluminum frame and upstream gel channel.

A round perforated stainless steel grille and frame assembly is attached with four (4) screws. Removing the grille permits replacing the HEPA or ULPA final filter without
removing the unit from the ceiling.

All final filters are tested according to accepted procedures as  described by the
Institute of Environmental Sciences (IEST) and/or ISO standards.

SAM is a registered trademark owned by Clean Rooms International Inc.


2′ x 2′ Units —
NCR Style Filter Data: Size: 23-5/8” x 23-5/8” x 3” with exposed stainless steel frame. The HEPA 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.

GS Style Filter Data: Size: 20-5/8” x 20-5/8” x 3” with anodized aluminum frame, upstream gel channel and diamond pattern white epoxy face screen. The HEPA 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 access port with removable plug is located in the center of the filter element face for introducing an upstream challenge or measuring static pressure.

2′ x 4′ Units —
GS Style Filter Data: Size: 20-5/8” x 44-5/8” x 3” with anodized aluminum frame, upstream gel channel and diamond pattern white epoxy face screen. The HEPA 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 access port with removable plug is located in the center of the filter element face for introducing an upstream challenge or measuring static pressure.

NCR Style Filter Data: Size: 23-5/8” x 47-5/8” x 3” with exposed stainless steel frame. The HEPA 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.

Actual Sizes
2 x 2 NCR Style 23-5/8” x 23-5/8” x 12-5/8”2 x 2 CRF Style 23-5/8” x 23-5/8” x 14-1/2”
2 x 4 NCR Style 23-5/8” x 47-5/8” x 12-5/8”2 x 4 CRF Style 23-5/8” x 47-5/8” x 14-1/2”
Base Model
(Ordering Information)
Mfg. CodeModel or DescriptionStyleSizeVoltageMotorVariable Speed ControlHEPA FilterWeight
12106*SAM22 MS SSNCR2×2115N31070308430205252 lbs. (23.6 kg.)
12108SAM22 MS SSNCR2×2208-230N31070391230205252 lbs. (23.6 kg.)
12109*SAM22 MS SSNCR2×2277N31070391530205252 lbs. (23.6 kg.)
12270*SAM24 MS SSNCR2×4115N31070308430205375 lbs. (34 kg.)
12271SAM24 MS SSNCR2×4208-230N31070391230205375 lbs. (34 kg.)
12272*SAM24 MS SSNCR2×4277N31070391530205375 lbs. (34 kg.)
12110*SAM22 MS GS SSGS2×2115N31070308430220170 lbs. (31.8 kg.)
12112SAM22 MS GS SSGS2×2208-230N31070391230220170 lbs. (31.8 kg.)
12113*SAM22 MS GS SSGS2×2277N31070391530220170 lbs. (31.8 kg.)
12273*SAM24 MS GS SSGS2×4115N310703084302200100 lbs. (45.4 kg.)
12274SAM24 MS GS SSGS2×4208-230N310703912302200100 lbs. (45.4 kg.)
12275*SAM24 MS GS SSGS2×4277N310703915302200100 lbs. (45.4 kg.)

* UL Listed

Motor Data
MotorVoltageHzWattsRunning AmpsStart-Up Amps
N310115601851.64.1
N310208-23050/601700.8-0.7(1)1.5(2)
N310277601650.61.5
  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
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
3020522 x 2 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
3020532 x 4 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302190Prefilter 20″x20″x1″, 30% ASHRAE efficient, pleated type

Note: Consult with the factory for horizontal flow applications

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