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Air particle counter MetOne 3400+ with pump
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Particle counter

Met One 3400+

Simplifies routine cleanroom monitoring

Application
Biotech & Life Sciences Laboratory & Research Food Industry Mechatronics & Medtech Hospital & Pharmacy
  • Standard

    21 CFR Part 11, GMP Annex 1

  • ISO class

    ISO 5 or higher

The transportable MET ONE 3400+ air particle counter was specially developed for cleanroom applications according to EN ISO 14644

During cleanroom qualification, the integrated assistant supports compliant performance. Simple programming of the measurement plans via area, location and other parameters – saves time and prevents operating errors.

3400+ at a glance

Characteristics

  • Integration of SOP’s

    Standardized workflows can be directly incorporated

  • Mobile use

    Portable airborne particle counter for flexible applications across different cleanrooms and zones

  • Regulatory-compliant measurement

    A digital assistant supports the correct and documented execution of all measurements

  • Paperless data transfer

    Secure digital transmission of measurement values reduces errors and simplifies archiving

  • GMP-compliant protection

    Password-protected access ensures that only authorized personnel can access the system

  • Cleanroom optimized

    Designed for use according to EN ISO 14644 and GMP – reliably up to ISO Class 5 and beyond

  • Complete documentation

    All activities are recorded in a tamper-proof audit trail for maximum traceability

  • Seamless integration

    Support for Microsoft Active Directory allows centralized user management and easy IT integration

Requirements

Requirements that make your daily work safer and easier

  • Measure particle load

    The air particle counter is ideal for accurately determining particle concentrations in air, compressed air, nitrogen, or noble gases. This allows companies to detect risks early, optimize process conditions, and ensure compliance with quality standards in sensitive production environments

  • Classify and monitor cleanrooms

    The solution supports continuous classification and monitoring of cleanrooms according to EN ISO 14644 or GMP.

  • Inspect filter and exhaust systems

    The particle counter enables the inspection of filter and exhaust ducts in critical systems. This allows early detection of malfunctions, optimization of maintenance intervals, and increased operational safety.

  • Evaluate HEPA filters

    Measuring particle concentrations before and after HEPA filters provides reliable data on filter efficiency

Person wearing a coverall in a cleanroom using the MetOne 3400+ air particle counter
Functional principle

Precise particle measurement with flexible data transfer

A laser-based light scattering sensor is used to measure the number and size of airborne particles. With this technology, particles between 0.3 and 10 µm can be accurately detected.
The measurement data can be exported by USB stick, Ethernet or web interface. Alternatively, the data can also be printed directly with the integrated printer.

Women reading the report

Technical speficiation

  • Particle sizes μm

    0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0

  • Flow rates

    28,3 LPM (1.0 CFM) ± 5 %

  • Outer dimensions (B x T x H) cm

    26.7 x 21 x 26

  • Weight

    6.5

  • Particle sizes μm

    0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0

  • Flow rates

    28,3 LPM (1.0 CFM) ± 5 %

  • Outer dimensions (B x T x H) cm

    26.7 x 21 x 26

  • Weight

    6.5

  • Particle sizes μm

    0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0

  • Flow rates

    50 LPM (1.77 CFM) ± 5 %

  • Outer dimensions (B x T x H) cm

    26.7 x 21 x 26

  • Weight

    6.5

  • Particle sizes μm

    0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0

  • Flow rates

    50 LPM (1.77 CFM) ± 5 %

  • Outer dimensions (B x T x H) cm

    26.7 x 21 x 26

  • Weight

    6.5

  • Particle sizes μm

    0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0

  • Flow rates

    100 LPM (3.53 CFM) ± 5 %

  • Outer dimensions (B x T x H) cm

    26.7 x 21 x 26

  • Weight

    6.9

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