| |
 |
 |
|
|
Clean Room |
Ask For Quote |
| What is a Cleanroom? |
|
A cleanroom is an environment, typically used in manufacturing or scientific research, that has
a low level of environmental pollutants such as dust, airborne microbes, aerosol particles and
chemical vapors. More accurately, a cleanroom has a controlled level of contamination that is
specified by the number of particles per cubic meter at a specified particle size. To give
perspective, the ambient air outside in a typical urban environment might contain as many as
35,000,000 particles per cubic meter, 0.5 μm and larger in diameter, corresponding to an ISO 9
cleanroom.
Cleanrooms are 10,000 times cleaner than a hospital operating room. It takes an incredible
amount of technology to achieve and maintain such cleanliness. Huge air filtration systems
completely change the air in cleanrooms about 10 times per minute, reducing the chance that
there are airborne particles that might harm the chips. They are used extensively in
semiconductor manufacturing, biotechnology, the life sciences and other fields that are very
sensitive to environmental contamination. |
 |
| Cleanroom classifications |
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 US FED STD 209E, and denote the
number of particles of size 0.5 μm or larger permitted per cubic foot of air. The standard also
allows interpolation, so it is possible to describe e.g. "class 2000".
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 cubic metre of air. So, for example, an ISO
class 5 cleanroom has at most 105 = 100,000 particles per m³.
Both FS 209E and ISO 14644-1 assume log-log relationships between particle size and particle
concentration. For that reason, there is no such thing as a "zero" particle concentration. The table
locations without entries are N/A ("not applicable") combinations of particle sizes and
cleanliness classes, and should not be read as zero.
Because 1 m³ is approximately 35 ft³, the two standards are mostly equivalent when measuring
0.5 μm particles, although the testing standards differ. Ordinary room air is approximately class
1,000,000 or ISO 9. |
| US FED STD 209E cleanroom standards |
Class |
maximum particles/ft3 |
ISO equivalent |
> 0.1 μm |
> 0.2 μm |
> 0.3 μm |
> 0.5 μm |
> 5 μm |
1 |
35 |
7 |
3 |
1 |
|
ISO 3 |
10 |
350 |
75 |
30 |
10 |
|
ISO 4 |
100 |
|
750 |
300 |
100 |
|
ISO 5 |
1,000 |
|
|
|
1,000 |
7 |
ISO 6 |
10,000 |
|
|
|
10,000 |
70 |
ISO 8 |
100,000 |
|
|
|
100,000 |
700 |
ISO 9 |
|
| US FED STD 209E was officially cancelled by the General Services Administration of the US
Department of Commerce November 29, 2001, but is still widely used. |
| ISO 14644-1 cleanroom standards |
Class |
maximum particles/m3 |
FED STD 209E equivalent |
> 0.1 μm |
> 0.2 μm |
> 0.3 μm |
> 0.5 μm |
> 1 μm |
> 5 μm |
ISO 1 |
10 |
2 |
|
|
|
|
|
ISO 2 |
100 |
24 |
10 |
4 |
|
|
|
ISO 3 |
1,000 |
237 |
102 |
35 |
8 |
|
Class 1 |
ISO 4 |
10,000 |
2,370 |
1,020 |
352 |
83 |
|
Class 10 |
ISO 5 |
100,000 |
23,700 |
10,200 |
3,520 |
832 |
29 |
Class 100 |
ISO 6 |
1,000,000 |
237,000 |
102,000 |
35,200 |
8,320 |
293 |
Class 1000 |
ISO 7 |
|
|
|
352,000 |
83,200 |
2,930 |
Class 10,000 |
ISO 8 |
|
|
|
3,520,000 |
832,000 |
29,300 |
Class 100,000 |
ISO 9 |
|
|
|
35,200,000 |
8,320,000 |
293,000 |
Room air |
|
| BS 5295 cleanroom standards |
Class |
maximum particles/ft3 |
> 0.5 μm |
> 1 μm |
> 5 μm |
> 10 μm |
> 25 μm |
Class 1 |
3,000 |
|
|
|
|
Class 2 |
300,000 |
|
2,000 |
30 |
|
Class 3 |
|
1,000,000 |
20,000 |
4,000 |
300 |
Class 4 |
|
|
200,000 |
40,000 |
4,000 |
|
BS 5295 Class 1 also requires that the greatest particle present in any sample does not exceed 5μm.
Cleanrooms offers several designs to meet all of customers' needs |
| Softwall |
 |
The Econo-Tent softwall is an economical and practical approach to portable cleanrooms. Room
sizes range from as small as 4'x6' to as large as 30'x30' (larger sizes available). Custom design
units 20'x20'x20' on casters. 24'x57' on seismic approve projects. |
|
| Bioclean (Aluminum) |
 |
Newest in our line of modular cleanrooms is the 2nd generation of the popular softwall Bio-
Clean (now the Micro-Clean). The Aluminum Bio-Clean was born out of the new requirements
of USP 797. Overall performance of both Bio-Clean cleanrooms are identical, but the new
Aluminum Bio-Clean has fewer joints, smaller seams and wall panels that are 1/4” thick acrylic
or Lexan. When it comes to a modular cleanroom for your pharmacy or manufacturing area it’s
as simple as “ABC”. |
|
| Micro-Clean |
 |
The Micro-Clean was designed to allow for the medical industries concern for microbial
contaminants, as well as airborne particulate matter. The Micro-Clean has been specifically
designed as a standard for the IV and home infusion markets. We have installed rooms in
pharmacies and hospitals all over the Unites States and in Europe. |
|
| Hardwall |
 |
The Modular Hardwall cleanroom offers you the best of all worlds, they are easily installed,
economically expanded and can be relocated or upgraded as your needs change. Modular
Hardwall cleanrooms are considered a more permanent fixed facility and offer a full line of
options not normally available on Soft and or Semi-rigid cleanrooms, such as removable walls,
clear ceiling spans up to 40’+, walls heights of 20’+, oversized single and double wide doors,
high speed roll-up and sliding doors, and load bearing roof desks with A/C mixing plenums. |
|
| Modular Hardwall cleanrooms are ideal for any industry requiring a cleanroom, projects sizes
have varied from as small as 8’x 8’ to as large as 48’ wide, lengths in the excess of 150’ and
finished interior heights of 20’+. Our Modular Hardwall cleanrooms have been installed
throughout the Unites States and Europe. |
| |
|
|
 |
|
|
