The Swiss IAQ Specialists
Air Treatementin Health Institutions
Clean room and clean area classification
The decontamination kinetics and the bacteriological standards are
defined and specified by NF S 90-351 and EN14644 standards.
Decontamination kinetics class
Particles decontamination kinetics at a level of 0,5 micron/m3 is set
by the time necessary to reach a 90% decontamination rate from the initial pollution
peak level. The class is defined by maximum time level needed for decontamination.
Bacteriological class
Three bacteriological classes are distinguished.
Technical performances according to risk levels in hospitals
(Room at rest with no human presence)
extract of EN 1446 - NF S 90-351 standard
