Membrane Filters and Cassettes for Air Sampling
Cassette Sizes and Types
37 mm Filter Cassette
Available in both a standard two-piece style and a three-piece style. These cassettes meet the NIOSH requirements for sampling most dusts, fumes and mists. Three-piece cassettes allow open face sampling, typically for asbestos and other fibers.
25 mm Filter Cassette
Available only in three-piece style, this cassette is used only for "Open Face" sampling and meets specifications for asbestos sampling, as described by NIOSH, OSHA and EPA. It has a two-inch extension cowl, assuring proper fiber distribution for microscopic fiber counts. The carbon imbedded body reduces static charge.
Membrane Types
PVC, Teflon, Glass fiber, Silver, Quartz and MCE (Mixed cellulose ester).
Cellulose Shrink Seals
Available in both 25mm and 37mm sizes, these bands are applied wet around the cassette and shrink when dry to form a tight seal. The seal provides a positive non-tampering indication when the cassette is received by the lab for analysis.
Cassette Holder
Consists of tubing with clip, designed to mount the cassette to the worker collar close to the breathing zone.
While selection of a specific cassette size/type and filter membrane should be determined by review of the NIOSH sampling guide, the following rules generally apply; All dusts, fumes and powders sampling – use 37mm filter and cassette. All asbestos and fibers sampling – use 25mm filter and cassette. Dust sampling – use 0.5 micron (pore size) PVC filter membrane. Most heavy metal (such as lead fume) sampling – use 0.8 micron MCE (mixed ester of cellulose) filter membrane.*
*Note: Metals form airborne vapors when heated, as these vapors cool and condense they become small airborne particulates, known as fumes.
Pre-loaded Cassettes | ||
GCU25080BLG | Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE Black Gridded, 50/bx | Asbestos, OSHA |
GCS25080 | Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE, No Grid, 50bx | Asbestos, OSHA |
GCU25080GRG | Cassette, 25mm, Classic Style, PCM, 0.8µm MCE Green Gridded, 50/bx | Asbestos, OSHA |
GNS25080 | Cassette, 25mm, Stand-Alone Style, PCM, 0.8µm, MCE, No Grid, 50bx | Asbestos, OSHA |
GCS25455-50 | Cassette, 25mm, Classic Style TEM, 0.45µm, MCE, 50/bx | Asbestos, EPA & AHERA |
GNS25455-50 | Cassette, 25mm, Stand-Alone Style TEM, 0.45µm, MCE, 50/bx | Asbestos, EPA & AHERA |
GCU37080 | Cassette, 37mm, 3pc, 0.8µm MCE 50/bx | Lead & Heavy Metals |
GCU37080BLGS | Cassette, 37mm 3pc 0.8µm MCE, BL Grid, Sterile, 50/pk | |
GCU37080GS | Cassette, 37mm 3pc 0.8µm MCE, Gridded, Sterile, 50/pk | |
GCU37080MW | Cassette, 37mm, 3pc, 0.8µm, MCE, Matched, Unb. 50/bx | |
GCU37080MWU | Cassette, 37mm 3pc 0.8µm, MCE Matched, (50µg), 50/bx | |
GCU37080MW-2 | Cassette, 37mm 2pc 0.8µm, MCE Matched (50µg), 50/bx | |
GCU37080S | Cassette, 37mm 3pc 0.8µm MCE Sterile, 50/pk | |
GCU3745BLGS | Cassette, 37mm 3pc .45µm MCE BL Grid, Sterile, 50/pk | |
GCU3745CS | Cassette, 37mm 3pc .45µm MCE Gridded Sterile, 50/pk | |
GCU3745EF | Cassette, 37mm .45µm PC Endotoxin Free, 10/bx | |
GCU37500PVC | Cassette, 37mm, 3pc, 5.0µm PVC, 50/bx | Dust, Hexavalent Chromium |
GCU37500PVC-2 | Cassette, 37mm 2pc 5.0µm PVC, 50/bx | Dust, Hexavalent Chromium |
GCU37500PVCMW | Cassette, 37mm 3pc 5.0µm, PVC Matched, (20µg), 50/bx | Dust, Hexavalent Chromium |
GCU37500PVCMW-2 | Cassette, 37mm 2pc 5.0µm, PVC Matched, (20µg), 50/bx | Dust, Hexavalent Chromium |
GCU37500PVCPW | Cassette, 37mm, 3pc, 5.0µm, PVC, Pre-weighed, (10µg) 50/bx | Dust, Hexavalent Chromium |
GCU37500PVCPW100 | Cassette, 37mm 2pc 5.0µm, PVC Pre-weighed, 50/bx | Dust, Hexavalent Chromium |
GCU37AE | Cassette, 37mm 3pc w/ Type A/E Glass Fiber, 50/bx | |
GCU37AE-2 | Cassette, 37mm 2pc w/ Type A/E Glass Fiber, 50/bx | |
GCU37200T | Cassette, 37mm, 3pc, 2.0µm, Teflon, 50/bx | |
GCU731TF | Cassette, 37mm, 3pc, 1.0µm, PTFE w/PP support, 50/bx | COVID-19 |
Special Pre-loaded Cassettes | ||
GCAOC10 | Cassette, Air-O-Cell 10/bx | Mold |
GCAOC50 | Cassette, Air-O-Cell 50/bx | Mold |
GCCS10 | Cassette, Carpet Sampling, 10/bx | Formaldehyde |
GCU25MV | Cassette, 25mm Micro Vac, ea | |
Filter Media | ||
GF25080 | Filter, MCE, 0.8µm, 25mm, PCM, No Grid, 100/pk | |
GF25080BLG | Filter, MCE, 0.8µm 25mm, PCM, with Black Grid Line, 100/pk | |
GF25080GRG | Filter, MCE, 0.8µm 25mm, PCM, with Green Grid Line, 100/pk | |
GF25450 | Filter, MCE, 0.45µm, 25mm, TEM 100/pk | |
GF25120 | Filter, MCE 1.2µm 25mm, 100/pk | |
GF25500 | Filter, MCE, 5.0µm, 25mm, 100/pk | |
GF37080 | Filter, MCE, 0.8µm, 37mm, 100/pk | |
GF37450 | Filter, MCE, 0.45µm, 37mm, 100/pk | |
GF47080 | Filter, MCE, 0.8µm, 47mm, 100/pk | |
GF47450 | Filter, MCE, 0.45µm, 47mm, 100/pk | |
GF25500PVC | Filter, PVC, 5.0µm 25mm, 100/pk | |
GF37500PVC | Filter, PVC, 5.0µm, 37mm, 100/pk | |
GF47500PVC | Filter, PVC, 5.0µm 47mm, 100/pk | |
GF37050T | Filter, PTFE with Polypropylene Backing, 0.45µm, 37mm, 100/pk | |
GF37200PT | Filter, PTFE, pure, 2.0µm, 37mm, 50/pk | |
GFG85037MM | Filter, Glass Fiber, Binderless, 1.1µm, 37mm, 100/pk | |
GFG858x10 | Filter, Glass Fiber, Binderless, 1.1µm, 8" x 10", 100/pk | |
GF25TQ | Filter, Tissue Quartz, (99.90% retention of 0.3µm DOP) 25mm, 100/pk | |
GF37TQ | Filter, Tissue Quartz, (99.90% retention of 0.3µm DOP) 37mm, 25/pk | |
Support Pads | ||
GP25 | Filter Support Pads, Porous Plastic, 25mm, 100/pk | |
GPG25100 | Filter, Support Pads, Cellulosic, 25mm, 40.0µm, 100/pk | |
GPP3700 | Filter, Support Pads, Porous Plastic, 37mm, 20.0µm, 100/pk | |
GPG37100 | Filter, Support Pads, Cellulosic, 37mm, 40.0µm, 100/pk | |
Cassette Housings | ||
GH25 | Housing, 25mm, Classic Style, 3pc, Conductive, 50/bx | |
GH37 | Housing, 37mm 3pc Opaque, 50/bx | |
GH37-2 | Housing, 37mm 2pc Opaque, 50/bx | |
GH37C | Housing, 37mm, Conductive 3pc, 50/bx | |
GH37SR | Housing, 37mm 3pc Solvent Res 50/bx | |
GH37SR-2 | Housing, 37mm 2pc Solvent Res, 50/bx | |
GCO37050 | Housing, 37mm, 3Pc, 50/bx | |
GCO37050-2 | Housing, 37mm, 2Pc, 50/bx | |
Shrink Bands | ||
GB25C | Band, 25mm Shrink, Clear 1000/pk | |
GB25W | Band, 25mm Shrink, White, 100/pk | |
GCO25DNL | Band, 25mm Shrink, White, 1000/pk | |
GB25Y | Band, 25mm Shrink, Yellow 1000/pk | |
GB37C | Band, 37mm Shrink, Clear 100/pk | |
GB37C1000 | Band, 37mm Shrink, Clear 1000/pk | |
GB37R | Band, 37mm Shrink, Red 100/pk | |
GB37R1000 | Band, 37mm Shrink, Red 1000/pk | |
GB37W | Band, 37mm Shrink, White 100/pk | |
GCO37DNL | Band, 37mm Shrink, White, 1000/pk | |
GB37Y | Band, 37mm Shrink, Yellow 100/pk | |
GB37Y1000 | Band, 37mm Shrink, Yellow 1000/pk |