Ductless Fume Hood Validation in 2026: ATEX/IECEx Zone Classification, Carbon Filter Lifecycle, and the 5-Step IQ/OQ/PQ Method That Closes the Audit A ductless fume hood looks like a low-cost alternative to a ducted hood — and that is exactly why…
Pass Box / Transfer Hatch Qualification in 2026: Annex 1 §4.21, the Interlock Logic, and the 5-Stage Sanitization SOP That Closes the Audit The pass box is the lowest-cost contamination-control step in any cleanroom envelope — and the most-cited source…
Cleanroom Personnel Gowning Procedure in 2026: Annex 1 §7 Compliance and the 7-Step SOP That Passes the Audit The 2023 EU GMP Annex 1 revision reshaped personnel gowning from a procedural SOP into a qualified contamination-control step. This article is…
Air Shower Compliance Audit in 2026: Annex 1, ISO 14644, and 21 CFR Part 11 Documentation The third piece of the air-shower trilogy — how to build the audit-ready evidence pack that closes Annex 1 §4.21 and 21 CFR Part…
Air Shower Performance Validation in 2026: Particle Removal Efficiency, Velocity Mapping, and Cycle Time Verification The three measurements that actually prove your air shower is still doing its job — and the documentation your 2026 auditor will ask for first.…
Cleanroom Lighting and UV-C Disinfection in 2026: Specifying Fixtures, Validating Cycles, and Annex 1 Compliance Lighting is the most underestimated contamination source in a cleanroom — and UV-C, when poorly validated, is one of the most common 2026 audit findings.…
2026 fume hood selection guide: ducted vs ductless, CAV vs VAV, face velocity 0.4/0.5/0.6 m/s, PP/FRP/stainless/PVDF materials, perchloric-acid rule, ANSI Z9.5 and EN 14175-3 references, 4-step selection workflow.
Chemical laboratories need ISO 7-8 modular cleanrooms with explosion-proof (ATEX/IECEx) equipment, three-zone pressure cascade, and chemical-resistant materials. This 2026 guide covers ISO class selection, Ex zone classification, PP/FRP/SS 316L material choice, and full DQ/IQ/OQ/PQ validation.
Most cleanroom contamination problems look like particle excursions on a trend plot. By the time the counter alarms, the cause usually started two corridors and one airlock away, on a door someone propped open or a pass box that lost…
HEPA integrity testing in 2026 is a stable, well-understood test that almost every facility performs annually. What has changed is the documentation, the CCS linkage, and the data integrity. The 2026 audit expectation is clear: Define the upstream aerosol (PAO…