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

Training exists. Wisdom doesn’t get passed on. Every few years, the controlled environment industry sounds the same alarm: “We can’t find skilled people anymore.” The conclusion is always the same: Not enough trained technicians Not enough qualified certifiers Not enough experienced professionals But here’s the uncomfortable truth no one wants to examine too closely: We’re not short on training. We’re short on transfer of wisdom. And those two things are not even remotely the