Your Complete Source for ISO 14644-1:2015 Particle Counting Information
ISO 14644-1:2015 continues to pose challenges to cleanroom managers and manufacturers. Here we provide several sources of information to help everyone from those new to this ISO regulation to veterans in the field.
Get a summary of ISO 14644-1:2015 by reading the paper below or watching the recorded webinar at the right.
Read the papers below to learn about the closely relevant ISO 21501-4 calibration standards and how they apply to you.
Have a question? Read some of the frequently asked questions we get (see the bottom right), or submit your own question for one of our experts.
Do you need an ISO 14644-1:2015 compliant product that is supported with ISO 21501-4 calibration? If yes, see our list of products at the bottom.
Knowledge / Papers
ISO 14644-1:2015 Revisions Summary
The recent revision of ISO 14644-1:2015 has introduced several changes for cleanroom classification and monitoring guidelines. This paper highlights the major changes in the new ISO 14644-1 compared to the previous version, as well as the possible impact on the Pharmaceutical EU GMP Annex 1 and FDA Aseptic Processing Guideline.
Complete the form to download a free copy of the ISO 14644 Revisions Summary paper, complete with all tables and graphs.
ISO 14644-1:2015 Compliant Products
Supported by ISO 21501-4 Certified Calibration
0.1 Micron Particle Counter: Lasair® III 110
The only true .1 micron particle counter, providing real-time measurement of yield-impacting cleanroom particles with three configurations.
IsoAir® 310P Remote Particle Sensor
Real-time remote cleanroom particle sensor gives quick notification of particle anomalies, detecting 0.3 and 5.0 µm for GMP and FDA compliance.
FacilityPro® Cleanroom Software for Pharmaceuticals
FacilityPro® Cleanroom Software for the Pharmaceutical Industry provides the interface, data management, and reporting for an environmental monitoring…
Airnet® II / IIs Remote Particle Sensors (2 Channels)
The Airnet particle sensor meets the specifications of ISO 21501-4 to measure the size and number of particles suspended in the air for real-time monitoring of defect-causing particles.
PMS Provides Certified Compliant Service
Service Repair & Calibration

At Particle Measuring Systems we have strict processes and standards in place to ensure that we meet and exceed service and calibration standards such as:
- ISO 21501-4:2007
- ISO 9001:2008
- ISO 17025
- Learn more about our service and calibration solutions.