Cleanroom Validation

All validation tests are conducted in accordance with NABH standards by a trained and qualified team. All instruments are calibrated for accuracy and compliance.
Air Velocity Test

Air Velocity Test

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Differential Pressure Test

Differential Pressure Test

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Filter Integrity Test (PAO/DOP Test)

Filter Integrity Test (PAO/DOP Test)

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Particle Count Test

Particle Count Test

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Particle Recovery Test

Particle Recovery Test

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Air Flow Pattern Test (Smoke Visualization)

Air Flow Pattern Test (Smoke Visualization)

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Temperature & Humidity Test

Temperature & Humidity Test

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Luminous Test

Luminous Test

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Sound Level Test

Sound Level Test

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Our specialists will assess your site and design a compliant, cost-effective solution tailored to your requirements.

Trusted Cleanroom Validation Services in Bangalore — Built on Precision and Compliance

At Venair Solutions, we provide end-to-end cleanroom validation services for pharmaceutical facilities, hospitals, research laboratories, and manufacturing units across Bangalore and India. Every test we conduct follows NABH standards, performed by a trained and qualified team using fully calibrated instruments — so your facility meets regulatory requirements with confidence.

Cleanroom Validation Services in Bangalore

A cleanroom is only as reliable as its last validation. At Venair Solutions, we provide comprehensive cleanroom validation services for pharmaceutical units, hospitals, research laboratories, and manufacturing facilities across Bangalore and India. Our validation process ensures your controlled environment consistently performs within its defined specifications — keeping your operations compliant, audit-ready, and contamination-free.

Every test we conduct follows NABH standards and internationally recognised guidelines including ISO 14644 and WHO GMP. Our team of trained and qualified validation engineers uses fully calibrated instruments, so every reading we deliver is accurate, traceable, and suitable for regulatory submissions.

We cover all nine critical validation parameters — from airflow and filtration to temperature, lighting, and sound — under one roof. This means you work with a single accountable partner rather than coordinating multiple agencies for different tests.

Whether you are preparing for an initial commissioning, a scheduled revalidation, or an upcoming NABH or GMP audit, Venair Solutions brings the technical expertise and documentation discipline to get your facility certified with confidence. Our deep experience in cleanroom design and construction gives us an edge that a standalone testing agency simply cannot offer — we understand your environment from the inside out.

Our Cleanroom Validation Tests

We perform all nine essential cleanroom validation tests as per NABH, ISO 14644, and GMP standards — giving your facility complete compliance coverage in a single engagement.

Air Velocity Test

Measures airflow speed and uniformity to ensure contaminants are effectively swept away from critical zones as per your cleanroom classification.

Differential Pressure Test

Verifies the correct pressure cascade between cleanroom zones, preventing cross-contamination between areas of different cleanliness grades.

Filter Integrity Test (PAO/DOP Test)

Detects leaks, pinholes, or bypass in HEPA/ULPA filters using aerosol challenge methods, confirming your filtration system delivers its rated efficiency.

Particle Count Test

Measures airborne particle concentration against ISO 14644-1 or GMP Grade standards, both at rest and in operation.

Particle Recovery Test

Validates how quickly your cleanroom returns to its specified cleanliness level after a contamination event, per ISO 14644-3 requirements.

Air Flow Pattern Test (Smoke Visualisation)

Uses visible smoke to identify dead zones or recirculation areas, ensuring airflow consistently protects critical zones.

Temperature & Humidity Test

Maps thermal and moisture conditions across the cleanroom to confirm your HVAC system maintains uniform setpoints throughout.

Luminous Intensity Test

Verifies that lighting levels at workstations meet regulatory and application-specific requirements for operator accuracy and inspection quality.

Sound Level Test

Measures decibel levels to ensure the environment remains within acceptable limits for both personnel comfort and equipment performance.

Why Bangalore Facilities Choose Venair Solutions for Cleanroom Validation

Cleanroom validation is only as dependable as the team performing it. Venair Solutions brings hands-on experience across pharmaceutical manufacturing plants, hospital operation theatres, biotech research laboratories, and precision manufacturing units — making us one of Bangalore's most trusted cleanroom validation partners.

Fully Calibrated Instruments

Every instrument we use — anemometers, particle counters, photometers, lux meters, and sound level meters — is regularly calibrated with traceable certificates. Every reading in your validation report is accurate, defensible, and ready for regulatory scrutiny.

NABH, ISO & GMP Aligned Protocols

All our test protocols are aligned with NABH standards, ISO 14644, WHO GMP, and Schedule M requirements — so your documentation holds up under any audit without additional preparation from your quality team.

End-to-End Cleanroom Expertise

Unlike standalone testing agencies, Venair Solutions also designs and builds modular cleanrooms, HVAC systems, and OT solutions. We understand your controlled environment at a systems level — when we identify an issue during validation, we can diagnose root cause and recommend the right corrective action.

Complete Documentation Package

You receive individual test reports, instrument calibration certificates, and a consolidated validation summary after every engagement — formatted to support NABH accreditation, GMP inspections, and client audits without any additional preparation.

All 9 Tests Under One Roof

We cover all nine critical validation parameters in a single engagement — so you work with one accountable partner rather than coordinating multiple agencies for different tests.

Pan-India Service from Bangalore

Based in Jigani Industrial Area, Bangalore, our validation team serves clients across Karnataka and throughout India — with fast scheduling, competitive pricing, and reliable turnaround on all reports.

Ready to validate your cleanroom facility?

Cleanroom Validation FAQs

Everything you need to know about cleanroom validation tests, standards, and compliance.

Cleanroom validation is a documented process of testing and confirming that a controlled environment consistently performs within its defined specifications — including air cleanliness, pressure differentials, temperature, humidity, and filtration efficiency. It is required for three primary reasons: regulatory compliance, operational reliability, and patient or product safety. In India, cleanroom validation is mandatory for pharmaceutical manufacturing facilities under WHO-GMP guidelines, for hospitals seeking NABH accreditation, and for any ISO-classified facility that must demonstrate its cleanroom meets the air quality standard it was designed for. Validation is not a one-time event — it must be repeated periodically and after any significant change to the HVAC system, layout, or process.
A comprehensive cleanroom validation covers nine critical parameters as per NABH, ISO 14644, and WHO-GMP standards:
  • Air Velocity Test — measures airflow speed and uniformity across the cleanroom
  • Differential Pressure Test — verifies correct pressure cascade between zones to prevent cross-contamination
  • Filter Integrity Test (PAO/DOP) — detects leaks or bypass in HEPA/ULPA filters using aerosol challenge
  • Particle Count Test — measures airborne particle concentration against ISO 14644-1 or GMP Grade standards
  • Particle Recovery Test — validates how quickly the cleanroom returns to specified cleanliness after a contamination event
  • Air Flow Pattern Test (Smoke Visualisation) — identifies dead zones or recirculation areas in the airflow
  • Temperature & Humidity Test — maps thermal and moisture conditions across the cleanroom
  • Luminous Intensity Test — verifies lighting levels meet regulatory and application requirements
  • Sound Level Test — measures decibel levels for personnel comfort and equipment performance compliance
A PAO/DOP Filter Integrity Test is a validation procedure used to confirm that HEPA or ULPA filters are free from leaks, pinholes, frame defects, or bypass pathways that would allow unfiltered air to pass through. The test is performed by introducing a fine aerosol challenge — either Poly Alpha Olefin (PAO) or Di-Octyl Phthalate (DOP) — upstream of the filter and then scanning the entire downstream face and frame seal using a photometer. Any point where aerosol penetration exceeds 0.01% of the upstream concentration indicates a leak that must be repaired or the filter replaced. This test is mandated under ISO 14644-3, WHO-GMP, and NABH standards and must be performed at commissioning and at regular revalidation intervals.
A Particle Count Test measures the concentration of airborne particles at specific sizes — typically 0.5 micron and 5.0 micron — at multiple locations within a cleanroom, using a calibrated optical particle counter. The results are compared against the limits defined by the cleanroom's target ISO classification (per ISO 14644-1) or GMP Grade (A, B, C, or D under WHO-GMP). Tests are conducted both at rest — with no personnel or activity — and in operation — under normal working conditions — since human activity is the primary source of particle generation in cleanrooms. Failing a particle count test indicates either a filtration issue, a pressure differential problem, or an inadequate air change rate.
Differential pressure testing verifies that the correct pressure cascade exists between adjacent cleanroom zones — meaning each zone is maintained at the right positive or negative pressure relative to its neighbours. In a pharmaceutical facility, the highest-classification sterile manufacturing zone must be at the highest positive pressure, with pressure stepping down progressively through Grade B, C, and D areas and finally to the corridor or unclassified space. This cascade ensures that when a door opens briefly, air flows from the cleaner zone outward — not the reverse. A correct and stable pressure differential is one of the most important contamination barriers in a cleanroom, and is typically monitored continuously via TMRC systems.
An Air Flow Pattern Test uses a non-toxic visible smoke tracer introduced into the cleanroom to make airflow patterns visible. Validation engineers observe and record how the smoke moves through the space, identifying whether the laminar or turbulent airflow is following the intended design path, whether there are any dead zones where air stagnates and particles can accumulate, or whether recirculation patterns bring contaminated air back over critical zones. This test is particularly critical in operation theatres and pharmaceutical filling areas where unidirectional laminar flow must consistently protect the product or patient from airborne contamination. Results are typically documented with video evidence for inclusion in the validation report.
A Particle Recovery Test validates how quickly a cleanroom returns to its specified particle count limit after a deliberate contamination event. During the test, particles are introduced into the cleanroom to raise concentrations significantly above the ISO classification limit, after which the cleanroom HVAC system is allowed to operate normally. The time taken for particle levels to return to within specification is measured and compared against the ISO 14644-3 benchmark of 20 minutes for most classifications. This test validates the effectiveness of the air change rate and filtration system under recovery conditions — not just under steady-state operation. It is a required validation parameter under ISO 14644-3 and NABH standards.
The frequency of cleanroom revalidation depends on regulatory requirements, the facility's classification, and operational changes:
  • ISO 14644-2 recommends particle count testing every 6 months for ISO Class 5 and above, and every 12 months for ISO Class 6–8
  • WHO-GMP requires periodic requalification of all critical parameters, typically annually for pharmaceutical manufacturing areas
  • NABH accreditation requires validation at commissioning and at defined intervals for hospital OTs and sterile areas
  • After any significant change — including HVAC modifications, filter replacements, structural changes, or relocation of equipment — an out-of-cycle revalidation is mandatory
Venair Solutions offers both scheduled revalidation programs and on-demand validation for change-control events.
Cleanroom validation in India is governed by:
  • ISO 14644-1 — defines airborne particle cleanliness classifications (ISO Class 1–9)
  • ISO 14644-2 — specifies monitoring and requalification requirements for classified cleanrooms
  • ISO 14644-3 — defines test methods for individual validation parameters
  • WHO-GMP guidelines — applicable to pharmaceutical manufacturing cleanrooms internationally
  • Schedule M (Revised) — India's GMP standard under the Drugs and Cosmetics Act, specifying cleanroom, HVAC, and environmental monitoring requirements
  • NABH standards — India's hospital accreditation framework, covering OT and sterile area validation requirements
All validation services by Venair Solutions are aligned with every applicable standard above.
A complete cleanroom validation engagement from Venair Solutions produces a full documentation package including individual test reports for each of the nine validation parameters — each containing the test methodology, instrument used, calibration certificate reference, measurement data, acceptance criteria, and pass/fail conclusion. You also receive instrument calibration certificates with traceability to national standards, and a consolidated validation summary report covering all parameters with an overall compliance verdict. All documents are formatted to support NABH accreditation, WHO-GMP inspections, and client or third-party audits without any additional preparation from your quality team.
Cleanroom commissioning and validation are two sequential but distinct phases. Commissioning is the engineering phase — verifying that all installed systems (HVAC, filtration, controls, lighting, utilities) are complete, functional, and operating as designed. It confirms the system works. Validation is the compliance phase — providing documented evidence, through a defined set of standardised tests, that the cleanroom consistently meets its specified performance parameters under defined conditions. It proves the system works to the required standard. In regulated industries, validation documentation is the legal and audit evidence of compliance — commissioning records alone are not sufficient for NABH, GMP, or ISO certification purposes.
When selecting a cleanroom validation service provider in Bangalore, look for a team that conducts all nine validation parameters — not just particle counting — using fully calibrated instruments with traceable certificates. Confirm their protocols are aligned with NABH, ISO 14644, and WHO-GMP requirements, and that they deliver complete documentation packages ready for audit without further preparation. A provider who also has expertise in cleanroom design and HVAC systems offers a critical advantage — when a test reveals a non-conformance, they can diagnose the root cause and recommend a corrective action. Venair Solutions, based in Jigani Industrial Area, Bangalore, combines validation expertise with hands-on cleanroom construction experience — serving pharmaceutical, hospital, biotech, and research clients across Karnataka and pan-India. Contact us for a free consultation.
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