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Particle excursions occur, but their cause is unclear.
Combine particle measurements with airflow, room pressure and filter checks to investigate possible sources and operating changes.
Measure the conditions that matter
Cleanroom Testing & Validation
Turn cleanroom performance questions into measurable answers. Explore particle counters, HEPA filter test equipment, airflow instruments and environmental test tools for commissioning, periodic verification and fault finding. Build a practical instrument set around your sampling locations, measurement ranges and reporting needs, so your team can investigate changes, document room conditions and make better informed maintenance decisions.
Find the source of performance changesCompare particle levels, airflow and pressure to narrow down where a cleanroom problem begins.
Equip each test correctlySelect instruments and accessories for the actual measurement, from filter scanning to compressed-gas sampling.
Make repeat testing easierMatch sampling methods, data output and calibration needs to your team's established test procedures.
Explore Cleanroom Testing & Validation
Particle Counters
Measure particles in air, compressed gas or liquids with a counter designed for that sample. Compare portable survey instruments with remote monitoring options and the particle-size channels your procedure needs.
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HEPA Filter Testing
Investigate installed filter leakage with aerosol generation, photometry and scanning accessories. Select the challenge method, detector and probe access together so the equipment matches your filter test procedure.
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Airflow & Pressure Measurement
Measure supply volumes, local air velocity, duct conditions and room pressure relationships. Choose capture hoods, anemometers or pressure instruments around the location and type of reading required.
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Airflow Visualization
Make airflow paths visible around openings and working equipment. Compare fogging methods, output control and delivery accessories while considering process compatibility and cleanup after the visualization study.
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Temperature, Humidity & Dew Point
Check environmental stability or map temperature and moisture conditions over time. Select meters, loggers and calibration tools for the expected range, sensor placement and required recording interval.
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Environmental Test Meters
Investigate lighting, sound, vibration and equipment temperature when these conditions affect the workspace. Match each meter to its measurement task rather than relying on a general-purpose reading.
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Compressed Gas Quality Testing
Assess utility quality where compressed air and process gases are used. Select moisture, oil, purity or microbial sampling equipment for the specific gas, pressure and contamination concern.
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Cleanroom Qualification Systems
Bring related instruments together for planned room verification and specialist integrity checks. Define the test scope first, then select kits or systems that support the required measurements.
Explore ProductsUnderstand your cleanroom before you change it
A particle count alone cannot explain every cleanroom issue. Supply airflow, filter integrity, room pressure and environmental conditions answer different questions. This range helps you assemble complementary tools instead of expecting one instrument to verify the entire facility.
Portable meters suit scheduled surveys and troubleshooting, while remote counters and multi-channel systems serve repeated measurements at selected points. Probe access, sample tubing and the ability to work around equipment are as important as a headline measurement range.
For qualification work, start with the tests your procedure requires and select the appropriate instruments, sampling accessories and records. STjh can help organize the equipment inquiry around room testing, HEPA scanning, airflow visualization or utility quality measurements without adding unrelated instruments.
Solutions for Your Purchasing Challenges
Filter faces are difficult to scan around installed equipment.
Choose photometers, scanning probes and aerosol equipment with access and handling requirements suited to the installation.
Test results are hard to compare between surveys.
Specify repeatable sampling settings, suitable data export and calibration arrangements for the intended measurement procedure.
Production utilities introduce contamination beyond the room air.
Add dedicated compressed-air, gas or liquid testing instruments rather than applying an ambient-air instrument to an incompatible sample.
Match Products to Your Working Environment
New-room commissioning
Equip airflow, pressure, filter-integrity and particle surveys before the room enters routine use.
Maintenance investigations
Check conditions after filter replacement, fan adjustment or changes to equipment layout.
Periodic qualification
Prepare instruments and accessories for planned cleanroom and supporting utility tests.
Find the Products You Need
Particle Counters
HEPA Filter Testing
Airflow & Pressure Measurement
Airflow Visualization
Temperature, Humidity & Dew Point
Environmental Test Meters
Compressed Gas Quality Testing
Cleanroom Qualification Systems
No products match your selection. Try another product type or a shorter search term.
Questions Before You Order
Can a particle counter replace a HEPA leak test system?
No. Particle counting characterizes the sampled contamination, while a filter leak test investigates the installed filter and its sealing boundary using a defined challenge and detection method. Select equipment for each required test.
Should we choose handheld, portable or remote particle counters?
Handheld instruments suit spot checks where their sample capability is adequate. Portable units support planned surveys; remote units serve installed monitoring points. Sampling volume, particle sizes, access and data handling should determine the choice.
Does buying a qualification kit certify our cleanroom?
No. Instruments support testing. Qualification depends on suitable procedures, calibrated equipment, competent testing and evaluation of the room against its intended requirements.
Build your cleanroom test equipment list
Send the tests you need to perform, expected ranges and sampling conditions. We can help identify the instruments and accessories to include in your quotation.
