ISO 7 Cleanroom: Particle Count, ACH, Airflow, Construction Cost & More

ISO 7 Cleanrooms are designed to handle up to 352,000 particles per cubic meter for particles that are 0.5 microns or larger. This level of control minimizes contamination risks, which is vital in sectors that demand pristine conditions. By adhering to these standards, set by the ISO 14644, environments remain suitable for sensitive operations.

Deiiang™, renowned for its precision engineering, incorporates advanced filtration systems to keep particle counts within allowable limits, ensuring compliance and operational efficiency.

Air changes per hour (ACH) in an ISO 7 cleanroom typically range from 60 to 90. This frequency of air exchange is crucial for removing particulates and maintaining temperature and humidity levels. ACH helps ensure that any contaminants introduced into the environment are swiftly removed or diluted, providing a stable atmosphere for sensitive work.

Deiiang Jason.peng designs HVAC systems that optimize airflow precisely to meet these requirements, crucially maintaining the cleanroom’s integrity and functionality.

HVAC system for cleanroom air circulation

HEPA (High-Efficiency Particulate Air) filters are essential in ISO 7 cleanrooms for removing particulates from the air. These filters capture 99.97% of airborne particles that are 0.3 microns or larger. The use of HEPA filtration confronts contamination, which is a primary concern in ensuring the cleanroom remains within its particle count limits.

Deiiang™ employs top-of-the-line HEPA filtration technology, engineered to provide consistent and reliable performance, thus securing the cleanroom’s environment.

HEPA Filters

• 
  99.97% efficiency at 0.3μm
• 
  Common in ISO 7-8 cleanrooms
• 
  Lower pressure drop

• Cost-effective for most applications

ULPA Filters

• 99.999% efficiency at 0.12μm

• Used in ISO 5-6 cleanrooms

• Higher pressure drop

• More expensive, higher maintenance

The airflow design in an ISO 7 cleanroom is carefully planned to maintain consistent environmental conditions. The layout typically uses a combination of laminar and turbulent flow to ensure that clean air is directed precisely over critical areas while maintaining overall air cleanliness. Proper airflow design is paramount for preventing particle build-up and ensuring the efficient operation of the cleanroom.

Experts like Deiiang Jason.peng utilize innovative design methodologies to enhance air distribution, supporting operational and regulatory standards.

Laminar Flow

Uniform, parallel airflow that moves in straight lines, ideal for critical areas requiring maximum cleanliness.

Turbulent Flow

Non-uniform airflow with mixed directions, commonly used in less critical areas of ISO 7 cleanrooms.

Gowning protocols in an ISO 7 cleanroom are fundamental to minimizing contamination. Personnel are required to wear gowns, gloves, masks, and often headgear to protect the clean environment from human particles. Such protocols are necessary to meet GMP guidelines and ISO standards, making sure that every individual entering the space contributes to its cleanliness rather than detracting from it.

Deiiang™ provides comprehensive gowning solutions that align with these protocols, ensuring that the workforce maintains high standards of hygiene.

Proper gowning attire for ISO 7 cleanroom personnel

Pharmaceutical Manufacturing

Production of tablets, injectables, and medical devices requiring controlled contamination levels.

Electronics Production

Manufacturing of Semiconductors, microchips, and sensitive electronic components.

Biotechnology Research

Cell culture, genetic research, and pharmaceutical development in controlled environments.

The construction cost of an ISO 7 cleanroom can vary significantly based on size, location, and specific requirements, such as advanced HVAC systems and regulatory compliance measures. On average, costs can range from $1,500 to $3,000 per square meter. Key factors affecting cost include the choice of materials, installation of sophisticated air handling systems, and integration of smart monitoring technologies.

Deiiang™ works alongside clients to tailor solutions that fit budget constraints while ensuring that all design and regulatory standards are adhered to, balancing cost with functionality.