If you’ve ever watched a technician roll into your cleanroom with what looks like a high-tech suitcase on wheels and start “vacuuming the air,” you might’ve wondered: Are they cleaning? Measuring? Hunting invisible dust gremlins? The answer is: yes… kind of. They’re performing a non-viable particle count , one of the most important (and most misunderstood) tests in cleanroom certification and monitoring. And despite the intimidating name, the concept is actually pretty simple

When containment is compromised: what puff-back testing reveals inside a B2 cabinet. If you’ve ever been told your Type B2 Biological Safety Cabinet needs “puff-back testing,” your first reaction might be: “That sounds serious… but also… what is that?” You’re not alone. Puff-back testing is one of the most misunderstood (and honestly, poorly named) tests in the controlled environment world. But once you understand it, it becomes one of the most important  safety concepts to g

Empowered teams create unstoppable results When most people think about controlled environment testing—cleanrooms, BSCs, laminar flow hoods—they think about compliance, audits, and client satisfaction. That’s what the industry has always emphasized: standards, procedures, and measurable results. And yes, those things are critically important—without them, you’re just a person with a particle counter staring at a cloud of dust. But here’s the part that rarely gets discussed: t