Designing cleanroom equipment for compliance

In this article, the Cleanroom Company discusses the important criteria to keep in mind while selecting equipment for cleanroom environments, focusing on regulatory compliance

When considering the selection of materials and finishes for the cleanroom envelope, care must be taken to choose those that will provide the cleanability levels required to comply with ISO 14644-4. Equally important is the requirement that the equipment within the room meets compliance.

It’s good practice to assess the suitability of cleanroom equipment in terms of airborne particle cleanliness. Good equipment design will reduce the possibility of particle deposit in “dead” areas while well-designed garments will contain most particles.

The key to ensuring compliance is the right choice of materials. Equipment needs to be smooth, cleanable and have low particle emissions. To avoid passive particle generation, stainless steel is recommended in place of plated or oxide-coated steel.

Where possible, equipment within the room should have sloping surfaces. Smooth work surfaces, with minimal joints and radius edges, should be sealed to the structure with mastic/seals.

Storage equipment, step-over benches, and other change room furniture should be manufactured from stainless steel or solid laminate such as Trespa. Seating should have coverings that will not absorb particulates and plastic covered - fabric type should be excluded.

With so many key factors to consider, it’s important expertise is sought during design to ensure all areas within the cleanroom are efficient, safe and compliant.

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