What is a Cleanroom?

What is a cleanroom?

A cleanroom is a controlled environment that filters pollutants like dust, airborne microbes, and aerosol particles to provide the cleanest area possible. Most controlled environments protect the production of products like electronic devices, pharmaceuticals, and medical equipment. Cleanrooms are classified into different classes depending on the number of particles allowed in the air per cubic meter. They also control variables like temperature, airflow, and humidity.

How does it work?

Essentially, cleanrooms work to remove pollutants, particles, and contaminants from outside ambient air. Outside air passes through a filter system. The filters (HEPA or ULPA) then clean and decontaminate this outside air according to their specifications. The filter then introduces the processed air into the controlled environment. Inside, positive pressure creates air flow, flushing out contamination generated by internal activities. The contaminated air is either returned to the ambient air or recirculated to the filters, where the process restarts. There are many different types of cleanrooms. The right type for you will depend on many factors, including size, application, and the type of room you need to convert.

Who needs a cleanroom?

A company may need a cleanroom for a wide variety of reasons. As a general rule, if you’re manufacturing something that is easily affected by contaminants or particles in the air, you’ll likely need a cleanroom. If you’re unsure, or if you’d like an estimate, call the experts at Angstrom. Here are a few common reasons you might need a cleanroom, and some common industries that regularly use cleanrooms:

  • Manufacturing Companies
  • Research Facilities
  • Pharmaceutical Companies
  • Medical Laboratories
  • Electronic Part Production
  • Aerospace Industry
  • Nanotechnology production
  • Optics and Lens Manufacturing
  • Military Applications

Meet the cleanroom experts at Angstrom Technology

Learn more about Angstrom Technology, what we do, and our four phase customer engagement process:

angstom technology



The Cleanroom Quote is just the beginning of the design process. After you submit your request, one of our cleanroom experts will contact you so we can quote your room most accurately. We’re here every step of the way to ensure you get the perfect cleanroom.


Whether you need a Class 1 or a Class 100,000 cleanroom, we have the tools, materials and knowledge to design a cleanroom that fits your specifications.


Do you have a cleanroom question? We’re here to help. If you would like information about our products or services just send us a message and a representative will get back with you shortly.