ISO 7 - class 10000 cleanroom definition

  • 22, 04, 2021

Cleanrooms are classified based on the number of particles found in the air. In this article, VCR will provide information about a type of cleanroom - Class 10000 cleanroom or ISO 7 clean room

1. What is class 10000 cleanroom - iso class 7 clean room?

   Class 10 000 cleanroom has a maximum particle count of 10 000 particles per cubic foot in the air, corresponding to an ISO 7 cleanroom.

HEPA filter coverage required is 15-20% of the area. Moreover, the cleanroom class 10 000 required 60-90 air changes per hour with an average airflow velocity of 0.051-0.076 m/s

Tiêu chuẩn phòng sạch Class 10.000

2. Class 10000 cleanroom standards - Iso class 7 cleanroom standards 

     Cleanroom classifications range from ISO 1 to ISO 9, with ISO 9 being the “dirtiest” and ISO 1 being the “cleanest”. The maximum allowable concentration of particles per cubic foot or meter of air is used to assign these classifications. Contamination levels in ISO 7/Class 10000 cleanrooms are measured by the concentration of particles in a cubic foot or meter of air. These levels are measured in microns and defined by the following standards:

  • ISO 14644-1 Standard for Maximum Number of Particles Permitted/m³ for ISO 7 Cleanroom
Particle size ≥0,1 µm ≥0,2 µm ≥0,3 µm ≥0,5µm ≥1µm ≥5 µm
Maximum particles/m3 - - 1.020.000 352.000 83.200 2.930
  • US FED Standard 209E Maximum Number of Particles Permitted/ft³ for Class 10000 Cleanroom
Particle size ≥0,1 µm ≥0,2 µm ≥0,3 µm ≥0,5µm ≥5 µm
Maximum particles/m3 350.000 75.000


10.000 70

3. Class 10000 cleanroom protection requirements

     Class 10,000 cleanrooms require workers to wear fewer protective garments than class 1000, class 100 or class 10 cleanrooms. However, cleanroom clothing such as face masks, hair and beard covers, and lab coats or other frocks is still compulsory. Workers have to wear coveralls and gloves in some ISO 7 cleanrooms. Nonwoven fabrics are used in cleanroom clothing to prevent contamination from shedding material fibers. 

Common ISO 7 cleanroom requirements include:

Tiêu chuẩn phòng sạch Class 1000

4. Class 10000 cleanroom applications - ISO 7 cleanroom applications

ISO 7 cleanrooms applications include:


Vietnam Cleanroom Equipment (VCR) specializes in providing cleanroom equipment for construction contractors. 

We provide high-quality products with competitive prices and large quantities nationwide. The equipment includes:

Differential pressure gauge, FFU Fan Filter Unit, Pass box, Clean room air filter, HEPA box, Clean booth, cleanroom steel door, Isolator cabinet, and other equipment

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