What Is a Class 10,000 Cleanroom?

Cleanrooms 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. Class 10,000 would have <10,000 particles/cubic foot. Minimum of 45 to 60 air changes per hour.

Various Class 10,000 Applications:

  • Pharmacy compounding rooms
  • Semiconductor non photolithography (bonding, metal deposition, testing)
  • Pharmaceutical manufacturing
  • Aerospace manufacturing

Typical Class 10,000 Cleanrooms Utilize:

  • Gowning room /air locks
  • Product pass thru’s
  • Heat welded vinyl or epoxy floors
  • Air conditioning for temperature control
  • HEPA fan filter units
  • Sealed cleanroom lighting
  • Magnahelic gauge for room air pressure monitoring
  • Workers typically garb up in non particulating cleanroom bunny suits, booties and hoods.
  • Some applications use air showers to enter.
  • Sticky mats at entrance and exit
  • Stainless steel bench
  • Gown racks
  • Stainless steel – hand free sinks


  • Negative pressure plenum
  • Ceiling mounted HEPA fan filter units and low wall air returns for laminar air flow
  • Cleanable hard walls

Softwall Class 10,000 option:

  • Clear vinyl walls
  • Strip curtain for entrance
  • Steel frame
  • Ceiling mounted HEPA FFU’s
  • Ceiling mounted lighting
  • Sometimes mounted on casters

Softwall Class 10,000 Limitations:

  • No temperature control
  • No measurable positive pressure
  • Cannot clean walls

Class 10,000 Softwall Typical Applications:

  • Inside Class 100k room
  • Inside warehouse
  • Weighing product during packaging
  • Inspection stations
  • Temporary cleanroom
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