Resources
Knowledge Base
Articles and guides on air sampling, indoor environments, and air quality. Practical knowledge for employers, facility managers, and cleanroom professionals.
What is air sampling and when is it needed?
An introduction to air sampling – what it involves, which situations require it, and what to expect from the process.
How to interpret an air sampling report
A guide to understanding your air sampling report – what the results mean, how they compare against reference values, and what actions may be required.
EU GMP Annex 1: requirements for air monitoring in pharmaceutical production
EU GMP Annex 1 sets strict requirements for air monitoring in aseptic production. Read about what is required for particle counting, microbial sampling and documentation.
Cleanroom classification according to ISO 14644: a complete guide
ISO 14644 is the international standard for cleanroom classification. Read about cleanroom classes, how classification is performed and what requirements apply.
Microbial air monitoring: methods and applications
Microbial air monitoring is critical in cleanrooms and sensitive production environments. Read about methods, standards and how we can help.
Particle counter calibration: why, how often and what is required
Correctly calibrated particle counters are the foundation for reliable measurement results. Read about calibration requirements, intervals and what to consider.
HEPA filters: classes, EN 1822 and what H13 and H14 mean
HEPA is not a single performance level but two classes in EN 1822. This is what H13 and H14 mean, why filters are tested at MPPS, and where the boundaries with EPA and ULPA fall.
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