Guaranteeing complete, practical and reliable aerobiocontamination control, the technology of the Air IDEAL® 3P™ Traceability relies on the well-established impaction method : after drawing air through a validated grid, it deposits any viable microorganisms onto an agar plate, enabling detection. - See more at: http://www.biomerieux-industry.com/biopharma/air-ideal-3p-traceability#sthash.bk9PcGlJ.AIzUOj8h.dpuf