Clean room

Some Ecophon products have been classified according to ISO 14644-1:2015 (Classification of air cleanliness by particle concentration).

This to ensure their compatibility with clean room requirements, in terms of the number of airborne particles (sizes ranging from 0,1 µm to 5 µm) expressed as a concentration in air volume.

ISO class Particle size
  > 0.1 μm > 0.2 μm > 0.3 μm > 0.5 μm > 1 μm > 5 μm
ISO Class 1 10 2        
ISO Class 2 100  24  10 4    
ISO Class 3 1000  237  102  35  8  
ISO Class 4 10000  2370  1020 352  83   
ISO Class 5 100000  23700  10200  3520  832  29
ISO Class 6 1000000  237000 102000  35200  8320  293 
ISO Class 7       352000 83200  2930 
ISO Class 8       3520000 832000  29300 
ISO Class 9       35200000 8320000  293000 

Some Ecophon products have also been tested to ensure their compatibility with the requirements from NF S 90-351 (Health care institutions — Controlled environment areas —Requirements for airborne contamination control). 

The standard defines several risk zones, where zone 4 has the highest demands. For a product to be classified for use in a certain risk zone it needs to be tested for particle emission according to ISO 14644-1, particle elimination kinetics and air microbiology control.

Definition of risk zones according to NF S 90-351

Class risk Class clean particle Kinetic elimination particles Class clean microbiological
4 ISO 5 CP(0,5)5 M1
3

ISO 7

CP(0,5)10 M10
2 ISO 8 CP(0,5)20 M100

 

Particle elimination kinetics (particular classes)

Classes kinetics of particle removal at 0,5 μm Time required to obtain 90% of reduction (min)
CP(0.5)20  20
CP(0.5)10  10
CP(0.5)5  5

Particle elimination kinetics at a level of 0,5 mm is defined by the time required to obtain a reduction of 90% in the number of initial particles.

 

Air microbiology control

Microbiological cleanliness class Maximum concentration in number of viable particles per cubic meter of air (UFC/m3)
M1 ≤1
M10 10
M100 100

The material is contaminated and then, after incubation, air and surface sampling is carried out to check that the material does not allow microbial proliferation. 

Ecophon products have been tested for the following species:

  • Staphylococcus aureus MRSA

  • Escherichia coli

  • Candida albicans

  • Aspergillus brasiliensis

Always refer to a product’s technical datasheet to ensure its compatibility with specific clean room requirements.