What Is an ISO 5 Cleanroom Classification?

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What Is an ISO 5 Cleanroom Classification?

Cleanrooms are specialized environments engineered to maintain extremely low levels of airborne particulate matter, creating optimal conditions for sensitive industrial and research processes. These spaces are governed by the ISO 14644-1 standard, which categorizes cleanrooms from ISO 1, the cleanest, to ISO 9, the least clean, based on specific limits for particle concentration. To achieve such high cleanliness levels, cleanrooms utilize high-efficiency particulate air (HEPA) filters, which cycle air multiple times per hour to eliminate contaminants. For instance, an ISO 5 cleanroom requires 240-360 air changes per hour, while an ISO 6 needs 90-180. Each cleanroom is custom-designed, taking into account factors such as room size, operational workflows, and equipment requirements. In the following content, we will have a detailed exploration of ISO 5 cleanrooms.