Terminal HEPA filters must achieve ≥99.97% efficiency at 0.3μm particles (per EN 1822-1), while ULPA filters target ≥99.999% at 0.12μm (MPPS method). Key certifications include:

• ISO 29463 (global standard for filter classification)
• IEST RP-CC034 (testing procedures for cleanroom filters)
• FDA 21 CFR 210/211 (pharmaceutical manufacturing compliance)

Example: Semiconductor fabs require ULPA filters with ISO 35H-40H ratings to control sub-0.1μm photoresist contaminants. Testing involves DOP/PAO aerosol challenges and laser particle counters to validate efficiency across 0.1-0.3μm ranges.

• Product Name: HEPA Air Filter
• Name: Cleanroom HEPA Filter
• Filter Efficiency: 99.995%@0.3um
• Other Name: Cleanroom Terminal Filter
• Frame: Aluminum
• Seal: AB Glue

Terminal HEPA filters (≥99.97% efficiency at 0.3µm) are mandatory in aseptic processing areas for injectables, vaccines, and biologics. They maintain ISO 5 (Class 100) environments in fill-finish lines, preventing microbial and particle contamination. Filters with DOP ports [2] enable integrity testing per FDA/EU GMP guidelines. Critical zones use laminar airflow units with ULPA filters (99.999% efficiency) to protect sterility during vial filling. HVAC systems integrate HEPA boxes for zoned pressure control, ensuring cross-contamination prevention between compounding and packaging areas.