GMP Cleanroom Grades: A, B, C, and D Explained
GMP cleanroom grades (A, B, C, and D) determine what kind of environment your pharmaceutical cleanroom needs to be. If you're building or upgrading a space, understanding them should be…

Cleanroom Division Manager
Mike brings three decades of cleanroom design and build experience to every project. He has developed design approaches that maximize both cleanroom performance and overall project cost savings, and he has built relationships with vendors across the U.S. who fully understand his designs and their intended function. Beyond cleanrooms, Mike has delivered some of Allied’s most complex modular buildings for private and public sector clients.
GMP cleanroom grades (A, B, C, and D) determine what kind of environment your pharmaceutical cleanroom needs to be. If you're building or upgrading a space, understanding them should be…
You often hear it said that filters (HEPA/ULPA) are the “backbone” of cleanrooms. This isn’t necessarily wrong. However, filters on their own can only do so much. Even with the…
Allied Cleanrooms will be exhibiting at MD&M West 2026, which takes place from February 3rd to the 5th at the Anaheim Convention Center. We’ll be there alongside other manufacturers, engineers,…