Industry News

Guide You To Learn About Cleanroom

Definition:

A cleanroom or clean room is an engineered space, which maintains a very low concentration of airborne particulatesby preventing them from entering, staying or generating inside clean room. Cleanrooms typically come with a cleanliness level along with other controlled parameters, including temperature, humidity, differential pressure, air velocity, etc.

Cleanroom Types:

Cleanrooms can be classified as below according to their purposes:

•Industrial cleanroom: mainly for controlling non-life particles;

•Bio-medical cleanroom: mainly for controlling both life-form (micro-organism) and non-life particles

Cleanrooms can be classified as below according to their airflow pattern:

•Unidirectional air flow(laminar flow) cleanroom;

•Non-unidirectional air flow(turbulent flow) cleanroom

•Mixed air flowcleanroom;

•Vector air flowcleanroom

Cleanroom Classification:

Cleanrooms are classified according to the number and size of particles permitted per volume of air:

ISO Class

Maximum particles/m3A

0.1μm

0.2μm

0.3μm

0.5μm

1μm

5μm

ISO 1

10

2

–

–

–

–

ISO 2

100

24

10

4

–

–

ISO 3

1000

237

102

35

8

–

ISO 4

10000

2370

1020

352

83

–

ISO 5

100000

23700

10200

3520

832

29

ISO 6

1000000

237000

102000

35200

8320

293

ISO 7

–

–

–

352000

83200

2930

ISO 8

–

–

–

3520000

832000

29300

ISO 9

–

–

–

35200000

8320000

293000

A: All concentrations in the table are cumulative, e.g. for ISO Class 5, the 10 200 particles shown at 0,3 μm include all particles equal to and greater than this size.

Cleanroom Application:

Cleanrooms are widely applied to below industries to provide a clean, safe and stable work space:

•Micro-electronics, semi-conductor,

•Precision machining

•Chemical manufacturing

•Nuclear industry

•Printing and coating

•Aerospacemanufacturing

•Bio-pharmaceutical

•Medical and laboratories

•Genetic engineering

•Food processing

•Daily chemicals manufacturing