PMT (GB) Ltd is an ISO 9001:2015 quality led company with ISO17025 Accreditation (0829) for Particle Counter Calibrations and Air Samplers.

We are dedicated to the provision and service of Particle Counters, Facility Monitoring Systems, Microbial Air Samplers, Rapid Microbial Detection Instruments and Ionisation equipment. 

PMT (GB) Ltd is a member of a group of independent companies operating throughout France, Belgium, Netherlands, Ireland, Switzerland and Germany, all dedicated to contamination control within critically controlled industries, and all working together to provide total European expertise and support.

Our core areas of expertise are primarily focused on the following industry sectors:

• Pharmaceutical
• Healthcare
• Electronics
• Telecommunications
• Automotive
• Environmental
• Research
• Life Science
• Stem Cell
• Biomedical

PMT offers a complete range of services, including::

• Consulting: Assistance in the proper selection and integration of particle measuring devices, airborne microorganism counters, and ionizers.
• Installation: Setup and qualification of measurement and control systems.
• Service: Technical support, maintenance, and repair of devices.
• Kalibrierung: Calibration of measuring instruments in accordance with ISO 21501-4 and ISO 17025:2017.

We offer various types of particle counters to meet different requirements:

1. Fixed Particle Counters: These devices are permanently integrated into your environment, providing continuous monitoring and precise measurements.
2. Remote Particle Counters: These devices are flexible and can be operated remotely to monitor different areas.
3. Handheld Particle Counters: These portable devices allow for quick and mobile measurements, making them ideal for flexible applications.

Our particle counters provide comprehensive solutions for monitoring and controlling particles in various environments.

PMT offers solutions for various sectors, including:

• electrical engineering
• pharmaceuticals and life sciences
• food and cosmetics

• Particle counters: For liquids and aerosols.
• Microbiological quick methods: For the analysis of water and airborne germs, including real-time germ counters for the pharmaceutical and life science industry.
• BioAerosol-Sampler: Innovative solutions for mobile and stationary applications, including impaction and slit-to-Agar.
• Decontamination: Advanced strategies for H2O2 system applications.
• Calibration:: ISO 17025 calibration services for particle counters and air samplers.

Yes, PMT offers training to help customers better understand and use particle measurement technology and other equipment.

For advice, services or technical support, you can contact PMT directly through their website or their offices in the various countries in which the company is represented.

PMT adheres to strict standards such as:

• ISO 14644: International standards for cleanrooms.
• GMP: Good manufacturing practice.
• ISO 21501-4: Standard for optical scattered light particle counters.

A particle counter is an instrument designed to detect, measure, and quantify the concentration and size of particles  such as dust, pollen, mold, or microscopic debris present in air, liquids, or on surfaces. It delivers real-time data that helps identify contamination and verify that controlled environments, such as cleanrooms, comply with stringent quality and safety requirements.

A particle counter draws air into a measurement chamber using an internal vacuum pump (or, in some cases, an external one). Inside the chamber, particles are analyzed and classified according to their size and concentration. This analysis is based on the light scattering principle.

A cleanroom particle counter is specifically designed to measure particles as small as 0.3 or 0.5 µm. It must also be easy to disinfect to ensure safe transfer and use within controlled cleanroom environments.

Discover PMT particle counters for cleanrooms!

A bioaerosol sampler draws air through a perforated sampling head onto a culture media plate. After incubation, the collected microorganisms can be analyzed to evaluate the microbial contamination level of a cleanroom.

Ionisation in cleanrooms is used to neutralise electrostatic charges on particles and surfaces, helping to reduce particle attraction and adhesion. PMT offers a wide range of Simco-Ion products the specialists in ionisation technology!

An ioniser is a type of air purification device that releases negative ions to neutralise static charges and airborne contaminants. In contrast, an air purifier with a filtration system physically removes particles from the air. Ionisers are particularly effective in reducing microbial contamination such as viruses and bacteria, while air filtration systems are designed to capture particles like dust and pollen that may cause respiratory irritation.

For applications such as cleanroom classification, a particle counter is positioned inside the cleanroom in accordance with the ISO 14644 standard, and the measurement process is then initiated. To ensure accurate and reliable results, it is essential to minimise potential interferences and maintain a direct, unobstructed tubing connection to the instrument.