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ISO 14644-1 Class 5 Cleanroom Classification guidelines

Federal Standard 209E equivalent: Class 100 Cleanroom

ISO Class 5 infoEU GMP: A/B

Air changes per hour required: 240-480

For ISO Class 5 cleanrooms, organisations typically measure micron sizes 0.5µ and 0.3µ, with GMP A/B also looking at 5.0µ.

See the maximum allowable concentrations by cleanroom class on our Cleanroom Information page.

Considerations for ISO Class 5 Cleanrooms

As ISO Class 5 cleanrooms are at the more critical end of the class spectrum, they require a greater level of filtration to achieve the level of cleanliness.

Ultra Low Penetration Air (ULPA) Filtration is 99.9995% efficient at 0.12 micron and should be considered when looking to achieve ISO class 5.

Monobloc construction cleanroomHardwall and monobloc cleanroom constructions are most effective at achieving the environment required for ISO class 5.

If organisations are working towards GMP grades, monobloc is the most effective solution, as it can accommodate required features such as interlocked doors and coved floors.

See our Case Studies for more information.

Clothing considerations for ISO Class 5 cleanrooms

Cleanroom clothing for the classesFind cleanroom clothing for ISO Class 5 cleanrooms at

Use the filters to refine your search to find the most appropriate clothing for your application.

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