American Cleanroom Systems® Presents Cleanroom Classifications
American Cleanroom Systems is a full-service manufacturer, specializing in the rapid production and installation of superior quality custom Pharmaceutical, Medical and Industrial cleanrooms.
Our can team design, manufacture and install your certified cleanroom in as little as 4 weeks, on-site with minimum disruption.
US FED STD 209E
| Class | Maximum Particles/ft³ | ISO equivalent | ||||
| >0.1 um | >0.2 um | >0.3 um | >0.5 um | >5 um | ||
| 1 | 35 | 7 | 3 | 1 | ISO3 | |
| 10 | 350 | 75 | 30 | 10 | ISO4 | |
| 100 | 100 | ISO5 | ||||
| 1000 | 1000 | 7 | ISO6 | |||
| 10,000 | 10,000 | 70 | ISO7 | |||
| 100,000 | 100,000 | 700 | ISO8 | |||
ISO 14644-1 Cleanroom Standards
| Class | Maximum Particles/m³ | FED STD 209E equivalent | |||||
| >0.1 um | >0.2 um | >0.3 um | >0.5 um | >1 um | >5 um | ||
| ISO 1 | 10 | 2 | |||||
| ISO 2 | 100 | 24 | 10 | 4 | |||
| ISO 3 | 1,000 | 237 | 102 | 35 | 8 | Class1 | |
| ISO 4 | 10,000 | 2,370 | 1,020 | 352 | 83 | Class10 | |
| ISO 5 | 100,000 | 23,7000 | 102,000 | 3,520 | 8,320 | 293 | Class 100 |
| ISO 6 | 1,000,000 | 237,000 | 102,000 | 35,200 | 8,320 | 2,930 | Class1,000 |
| ISO 7 | 352,000 | 83,200 | 2,930 | Class 10,000 | |||
| ISO 8 | 3,520,000 | 832,000 | 29,300 | Class 100,000 | |||
| ISO 9 | 35,200,000 | 8,320,000 | 293,000 | Room Air | |||
| Criteria | Class 10 ISO4 | Class 100 ISO5 | Class 1000 ISO6 | Class 10,000 ISO7 | Class 100,000 ISO8 |
| Air changes per HR/Min | 500-600 / 8 to 10 | 300 to 480 / 5 to 8 | 180 / 3 | 60 /1 | 20 /0.33 |
| Filter coverage % | 90 – 100 | 60 – 70 | 20 – 30 | 7 – 15 | 4 – 5 |
| CFM per square foot | 85 – 90 | 36 – 65 | 18 – 32 | 9 – 16 | 4 – 8 |
| Filter Efficiency | 99.9997% ULPAs | 99.997% HEPAs | 99.997% HEPAs | 99.997% HEPAs | 99.97% HEPAs |
| Ceiling Type | Aluminum T-bar grid | Aluminum T-bar grid | Aluminum T-bar grid | Conventional T-bar grid | Conventional T-bar grid |
| Light Fixture type | Tear drop or Flow thru | Tear drop or 2’x4’ cleanroom fixture | 2’x4’ cleanroom fixture | 2’x4’ cleanroom fixture | 2’x4’ standard fixture |
| Ceiling Panel | FRP, Vinyl rock or Mylar | FRP, Vinyl rock or Mylar | Vinyl rock or Mylar | Vinyl rock or Mylar | Vinyl rock or Mylar |
| Wall System | Modular or standard built | Modular or standard built | Modular or standard built | Modular or drywall | Modular or drywall |
| Flooring cover | Welded sheet vinyl or Epoxy | Welded sheet vinyl or Epoxy | Welded Sheet vinyl or Epoxy | Sheet vinyl or VCT | Sheet vinyl or VCT |
| Flooring base | 2” to 6” cove | Cove or Aluminum base channel | Cove or Aluminum base channel | Cove or Aluminum base channel | Cove or Aluminum base channel |
| Air Returns | Raised floor or center returns | Low wall on long axis | Low wall at perimeter | Low wall | Low wall or ceiling |
Why American Cleanroom Systems®
Experienced: Expert modular cleanroom design, manufacturing, installation and certification since 1976. More than 500 cleanrooms built.
Quality construction: We manufacture all our components in house. Installation is done by our factory team on-site.
Satisfied customers: Read why customers chose American Cleanroom Systems and why they come back.
