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HVAC & Cleanroom Validation

HVAC & Cleanroom Validation Services by Vashishta Engineering Services

Vashishta Engineering Services is a leading specialist provider of validation services for pharmaceutical, healthcare, and life sciences industries. With over 20 years of industrial experience, we offer comprehensive HVAC and cleanroom validation services nationally and internationally, ensuring compliance with global regulatory standards.

Why HVAC & Cleanroom Validation?

Cleanroom and HVAC validation ensures that your controlled environment operates as intended, safeguarding product quality and patient safety. Key reasons for validation include:

  • Verifying facility design aligns with its intended purpose.

  • Ensuring compliance with User Requirement Specifications (URS).

  • Meeting stringent regulatory requirements (e.g., ISO, EU GMP, WHO).

  • Confirming that facilities, equipment, and environments function cohesively to meet defined standards.

Our Compliance Framework

We perform HVAC and cleanroom validation in accordance with:

  • ISO 14644-1,2,3: Cleanroom classification and testing.

  • EU GMP/EC GMP: Good Manufacturing Practices guidelines.

  • WHO-TRS-937, WHO-TRS-961: World Health Organization technical guidelines.

  • Schedule M: Indian regulatory requirements for pharmaceuticals.

Cleanroom Certification & Monitoring

Certification

We validate cleanrooms to the required class of cleanliness as defined in ISO 14644-1. The level of cleanliness is determined by your specific operational and regulatory needs.

Monitoring & Control

Post-certification, continuous monitoring is essential to maintain compliance. We recommend statistical process control (SPC) to track cleanroom parameters, as outlined in ISO 14644-2.

Our Comprehensive Validation Tests

As per ISO 14644-3, we conduct the following tests to certify and validate cleanrooms/clean zones:

Air Velocity Test & ACPH Calculations

We measure air velocity and uniformity to calculate air changes per hour (ACPH), ensuring optimal airflow distribution.

Installed Filter System Leakage Test (PAO/DOP)

We perform HEPA/ULPA filter integrity testing using Poly Alpha Olefin (PAO) or Di-Octyl Phthalate (DOP) to detect leaks and ensure filter compliance.

Non-Viable Particle Count Test

We classify cleanroom air quality by measuring airborne particulate levels under As-Built, At-Rest, or Operational conditions per ISO 14644 and EU GMP.

Recovery Test

We assess the cleanroom’s ability to recover from particulate contamination within a specified time, demonstrating its resilience.

Airflow Pattern Test (Smoke Studies)

Using foggers, we visualize airflow patterns to ensure unidirectional flow and identify turbulence or dead zones.

Air Pressure Balancing

We verify pressure differentials between adjacent areas to prevent cross-contamination.

Containment Test

We ensure containment systems prevent airborne contaminants from entering clean zones.

Temperature & RH Measurement

We map temperature and humidity uniformity to meet operational and comfort requirements.

Light Intensity Measurement

We verify that lighting levels meet specified lux requirements for operational safety and precision.

Sound Level Measurement

We map temperature and humidity uniformity to meet operational and comfort requirements.
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