What are ISO Cleanroom Requirements?
Clean Room Particle Count,Less than two particles larger than 0.3 microns and no particles larger than 1.0 microns per cubic meter are required by the ISO 1 specification for cleanrooms. An ISO 1 cleanroom typically uses ULPA filtration and has 500–750 air changes per hour. Additionally, typical traits are elevated floors and 100% ULPA ceiling coverage. It is the cleanroom classification's most pristine.