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June 14, 2018

MDC Gas Delivery Products is proud to announce a brand new class 100 clean room at the Hayward facility.


New Hayward Clean Room 2


This expansion is part of our ongoing efforts to provide our customers with the most advanced and dependable vacuum technology available. Using these new resources, our talented technicians and welders will now have greater capability to meet demand and exceed expectations in the semiconductor industry and other quickly evolving fields.



Clean rooms are controlled, isolated environments designed to limit the level of airborne particles and contaminants. The surrounding air outside in a typical urban area contains around 35,000,000 particles per cubic meter sized 0.5 micrometers or larger. By comparison, our new class 100 clean room contains around 3,500 particles per cubic meter – around 10,000% less contamination than outside.


New Hayward Clean Room 3

One of the secrets to a clean room’s cleanliness is in the air. Air entering the clean room goes through a filtration process, and air inside the cleanroom is constantly recirculated through high-efficiency particulate air (HEPA) and/or ultra-low particulate air (ULPA) filters to remove internally generated contaminants.


33 New Hayward Cleanroom - MDC Gas Delivery Products - No Entry


Staff enter and leave the clean room through an airlock and wear protective clothing such as hoods, face masks, gloves, boots, and coveralls. Equipment inside the cleanroom is designed to generate minimal air contamination. Only special mops and buckets are used. Cleanroom furniture is designed to produce a minimum of particles and is easy to clean.



Clean rooms are classified according to the number and size of particles permitted per volume of air. Large numbers like “class 100” or “class 1000” refer to FED-STD-209E, and denote the number of particles of size 0.5 µm or larger permitted per cubic foot of air. Small numbers refer to ISO 14644-1 standards, which specify the decimal logarithm of the number of particles 0.1 µm or larger permitted per m3 of air. So, for example, an ISO class 5 cleanroom has at most 105 particles/m3.


ISO Clean Room Clasifications


Clean rooms are used in practically every industry where small particles can adversely affect the manufacturing process. This includes applications in aeronautics, optics, biotechnology, nanotechnology, pharmaceuticals, medical technology, military research, telecommunications.


17 New Hayward Cleanroom - MDC Gas Delivery Products


Clean rooms are especially important to the development and manufacture of semiconductors.


semiconductor manufacturing collage



MDC’s ultra-high purity gas delivery products are welded and assembled in a class 100 clean room by some of the industry’s most talented and experienced technicians and welders. Many members of the MDC Gas Delivery Products division team have been with the company for over a decade and reflect MDC’s commitment to providing consistently high-quality and competitively priced components. Find out more about MDC Gas Delivery Products by visiting their website: Also, be sure to visit our eCommerce website for instant access to our comprehensive catalog of vacuum technology, ceramic-to-metal seals, and gas delivery solutions.


4 New Hayward Cleanroom - MDC Gas Delivery Products