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Tag: Cleanroom

Allied Cleanrooms modular cleanroom exterior with connected air handling equipment and insulated ductwork inside a warehouse facility

June 16, 2026

One-Pass vs. Recirculating Cleanrooms: What’s the Difference?

Every cleanroom filters air, but there are two ways of going about it. Which one you choose affects everything from cost to how much control you have over temperature and humidity. In this article, we\'ll explain the difference between one-pass and recirculating clea...

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Interior hallway of a modular cleanroom built by Allied Cleanrooms, featuring flush wall panels, interior windows, and a wall-mounted sanitizer dispenser.

June 5, 2026

8 Things You Should Never Bring Into a Cleanroom

Even with advanced filtration systems, strict gowning procedures, and various controls, at the end of the day, a cleanroom is only as clean as what you let into it. Every person or item that crosses the door’s threshold brings particles in with it, and so naturally c...

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Aseptic cleanroom built by Allied Cleanrooms with gowned technician

May 18, 2026

What Are “Aseptic” Cleanrooms? A Short Guide

If you\'ve been looking into cleanrooms for pharmaceutical manufacturing, or even medical devices, you may have come across the term \"aseptic cleanroom.” Though not strictly a formal classification, the term has become a common way to refer to cleanrooms designed for a...

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Cleanroom commissioning ready facility built by Allied Cleanrooms

May 7, 2026

Cleanroom Commissioning: The Basics

A cleanroom can look finished and still not be ready to use. Given that cleanrooms are heavily regulated spaces, there needs to be a way to confirm that everything works. And this is essentially what the commissioning process is for.  In this article, we\'ll discuss ...

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Allied Cleanrooms air handling unit system with large insulated ductwork installed in a cleanroom mechanical space

April 16, 2026

Fan Filter Units vs. Air Handling Units for Cleanrooms

If you’re planning on building a cleanroom, one of the most important aspects of design is figuring out how the air will be filtered and moved through the space. The two common options are fan filter units (FFUs) and air handling units (AHUs). Both have the same purpose...

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Cleanroom technician following cleanroom gowning procedures with gloves, mask, and full protective suit in a controlled environment by Allied Cleanrooms

April 9, 2026

Cleanroom Gowning Procedures: A Simple Guide

It is often said that the biggest source of contamination in any cleanroom is people. Even while standing still, a person sheds around 100,000 particles per minute. Now add walking, head scratching, and other kinds of movement, and the total is raised to several mill...

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GMP cleanroom grades facility built by Allied Cleanrooms

April 1, 2026

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 the starting point before anything else. In this article, we\'ll cover what each...

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Empty modular cleanroom by Allied Cleanrooms ready for validation testing

March 24, 2026

Cleanroom Validation: A Simple Guide

Building a cleanroom is one thing, but proving it works is a different story. In this article, we\'ll cover what cleanroom validation is, the main qualification stages, what gets tested, and more. What Is Cleanroom Validation? Simply put, cleanroom validation is t...

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Attendees gather at the Allied Cleanrooms trade show booth, viewing a modular cleanroom structure and speaking with company representatives.

December 17, 2025

Allied Cleanrooms at MD&M West

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, and suppliers across the medical device, pharmaceutical, and life scienc...

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Modular cleanroom corridor with interior windows and sealed doors, built by Allied Cleanrooms for optimized post-build cleanroom planning.

November 12, 2025

Post-Build Cleanroom Planning: What to Know Early On

Before your cleanroom is built, it can look perfect on paper or in theory. You may even feel good about having designed an efficient space. The only problem is that it has never been tested in real life. That’s when businesses discover they can’t access the HEPA filters...

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Modular cleanroom (designed via a cleanroom URS) interior by Allied Cleanrooms with pass-through chamber and wall windows.

November 2, 2025

How to Create a Cleanroom URS: A Short Guide

When planning a cleanroom or starting a checklist, it’s very tempting to jump straight into the design. However, before any quotes, you’ll need a clear URS (user requirement specification). In this guide, we’ll cover what a cleanroom URS is, what to include within it, a...

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Clean room by Allied Cleanrooms - USP 797, and ISO 4, ISO 5, ISO 6, ISO 7, and IS0 8, cGMP cleanroom manufacturing, soft wall cleanrooms FED-STD-209E and ISO 14644-1, control contamination

October 24, 2025

The Top 5 Causes of Cleanroom Contamination

A simple mote of dust in the wrong place at the wrong time can destroy products, and even make them dangerous to consumers. What’s more, this doesn’t usually happen by any dramatic actions, but mostly through negligence. Particles are so tiny and so invisible, that many...

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