Faster SafeFAST Elite is a Microbiological Safety Cabinet - designed and built to performance requirements of the EN-12469:2000 European Standardand and NSF/ANSI 49 American Standard, with 70% of the air re-circulated via the main Class H14 HEPA/ULPA filter within the cabinet, whilst the remaining 30% is discharged through an exhaust Class H14 HEPA/ULPA filter.