Learn About Clean Room Specifications ISO 14644

Clean Room Specifications ISO 14644 play a critical role in the pharmaceutical industry to ensure the quality and safety of pharmaceutical products. The International Organization for Standardization (ISO) has established the ISO 14644 standard, which highlights the requirements for clean rooms. 

This post provides an overview of the ISO 14644 standard and helps you understand the working nature of the cleanrooms according to the provided standards. 

Clean Room Specifications ISO 14644 by Zeptac

Clean Room Classifications

Clean rooms are classified based on the maximum allowable concentration of airborne particles. The ISO 14644-1 standard provides guidelines for clean room classifications, ranging from ISO Class 1 (the cleanest) to ISO Class 9 (the least clean). The standard specifies the maximum allowable number of particles per cubic meter for each class.

Cleanrooms According to ISO 14644 Standard

#1 – Particle Monitoring

Particle monitoring is crucial for maintaining the cleanliness of clean rooms. The ISO 14644 standard provides guidance on the procedures and instruments for measuring particle levels. The standard requires that particle counting be performed at regular intervals and after any significant changes to the clean room environment.

#2 – Contamination Control

Contamination can arise from a variety of sources, including people, equipment, and the environment. Proper gowning, cleaning, and disinfection procedures are critical for controlling contamination in clean rooms. The ISO 14644 standard provides guidelines for contamination control measures, including air filtration and proper handling of materials.

#3 – Microbial Control

Microbial contamination is a significant concern in clean rooms, as it can compromise the safety and efficacy of pharmaceutical products. The ISO 14644 standard provides guidelines for monitoring and controlling microbial contamination, including the use of air filtration and sterilization procedures.

#4 – Clean Room Validation

Clean room validation is the process of verifying that a clean room meets the requirements of the ISO 14644 standard. This standard outlines the requirements for clean room validation, including the qualification of personnel, equipment, and facilities, as well as the documentation of validation activities.


Clean rooms are critical for ensuring the quality and safety of pharmaceutical products. The ISO 14644 standard provides guidelines for maintaining clean rooms and associated controlled environments. It is essential for pharmaceutical companies to adhere to these standards and ensure that their clean rooms are properly classified, monitored, and validated. By following the guidelines outlined in the ISO 14644 standard, pharmaceutical companies can ensure the highest level of cleanliness and quality in their products.

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