SOP for Maintenance of Cleanroom Facilities

Standard Operating Procedure for Maintenance of Cleanroom Facilities

1) Purpose

This SOP outlines the procedures for maintaining cleanroom facilities used in the production of nasal formulations. Cleanroom maintenance is critical for controlling contamination and maintaining air quality within the facility.

2) Scope

This SOP applies to all personnel responsible for maintaining the cleanliness, safety, and operational standards of cleanroom facilities at [Company Name].

3) Responsibilities

Cleanroom Operators: Responsible for cleaning and maintaining the cleanroom, including floors, walls, and equipment surfaces.
Quality Assurance (QA): Ensures that cleanroom environmental conditions, including air quality and surface cleanliness, meet the required specifications.
Maintenance Team: Responsible for maintaining HVAC systems, cleanroom integrity, and cleanliness monitoring systems.

4) Procedure

4.1 Daily Cleanroom Maintenance

4.1.1 Surface Cleaning

At the start of each shift, clean all surfaces, including floors, walls, and equipment surfaces, using an approved disinfectant solution. Follow a systematic cleaning pattern from the cleanest areas to the dirtiest.
Ensure that no dust, debris, or spilled liquids remain on any surface. Record the cleaning activities in the cleanroom cleaning log.

4.1.2 Equipment Cleaning

Disassemble any removable equipment parts, such as filters and seals, and clean them with an approved cleaning agent. Rinse with sterile water and dry using lint-free wipes.
Inspect all cleaned equipment to ensure it is free from contamination and ready for use. Document the cleaning process in the equipment cleaning log.

4.2 Weekly Cleanroom Maintenance

4.2.1 Airflow and Pressure Testing

Test the air pressure differentials between the cleanroom and adjacent areas weekly. Verify that the airflow is laminar and that the cleanroom maintains the required positive pressure differential.
Record the results of airflow and pressure tests in the cleanroom environmental monitoring log. Notify the maintenance team if any deviations are detected.

4.2.2 HEPA Filter Inspection

Inspect the HEPA filters in the HVAC system weekly for any blockages or signs of wear. Replace filters if the pressure differential exceeds acceptable limits or if filters appear damaged.
Document the filter inspection in the maintenance log and submit for QA review.

4.3 Monthly Cleanroom Maintenance

4.3.1 Deep Cleaning of Surfaces

Conduct a deep cleaning of all surfaces in the cleanroom at least once per month, using stronger disinfectant solutions. Pay special attention to hard-to-reach areas and clean beneath and behind equipment.
Ensure that all cleanroom fixtures, such as lighting and HVAC ducts, are cleaned thoroughly during deep cleaning. Record the deep cleaning in the cleanroom cleaning log.

4.3.2 Monitoring Particle Counts

Measure particle counts in the cleanroom monthly using an approved particle counter. Compare the results with the specified limits for the cleanroom classification (e.g., ISO Class 5).
Document the particle count results in the environmental monitoring log and submit for QA approval.

4.4 Annual Cleanroom Certification

4.4.1 Full HVAC System Maintenance

Once per year, perform full maintenance on the cleanroom HVAC system, including duct cleaning, HEPA filter replacement, and recalibration of pressure control systems.
Document the HVAC system maintenance and submit the report for QA review.

4.4.2 Cleanroom Recertification

Contract a certified cleanroom validation company annually to perform recertification of the cleanroom according to regulatory guidelines (e.g., ISO standards). Ensure that the cleanroom passes particle count, airflow, and microbial contamination tests.
Submit the cleanroom recertification report to QA for approval and archiving.

5) Abbreviations, if any

HVAC: Heating, Ventilation, and Air Conditioning
QA: Quality Assurance

6) Documents, if any

Cleanroom Cleaning Log
Equipment Cleaning Log
Environmental Monitoring Log
Maintenance Log

7) References, if any

ISO 14644-1: Cleanrooms and associated controlled environments
Internal SOP for HVAC system maintenance

8) SOP Version

Version 1.0

Annexure

1. Cleanroom Cleaning Log Template


  
    Date
    Room ID
    Surface Cleaned
    Disinfectant Used
    Operator Initials
    QA Approval
  
  
    DD/MM/YYYY
    Room Identifier
    Surface Cleaned
    Disinfectant Name
    Operator Name
    QA Name

Date	Room ID	Surface Cleaned	Disinfectant Used	Operator Initials	QA Approval
DD/MM/YYYY	Room Identifier	Surface Cleaned	Disinfectant Name	Operator Name	QA Name