LAF Pass Box vs Pass Box with Air Shower
What’s the Difference Between LAF Pass Box and Pass Box with Air Shower?
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LAF pass box uses HEPA-filtered unidirectional airflow (0.36–0.45 m/s) to create an ISO Class 5 (Grade A) micro-environment inside the chamber.Clean air flows smoothly across materials, pushing particles away with minimal turbulence
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Pass box with air shower uses high-velocity air nozzles—similar to an air shower—to blow off loose contamination from the surface of items.Instead of laminar flow, it relies on strong, turbulent airflow to remove particles
LAF Pass Box (Laminar Airflow Pass Box)
Main Features: HEPA-filtered unidirectional airflow (laminar flow)
High-grade clean zones where transferred materials must be protected from airborne particles during transit.
Key Features:
Vertical unidirectional airflow (typically ≥0.45 m/s) Integrated HEPA/ULPA filter for ISO Class 5 air quality Provides a clean, controlled environment during material transfer UV lamp (optional), stainless steel interior, and seamless corners Widely used in pharmaceuticals, biotech, and microelectronicsPass Box with Air Shower
Main Features: High-velocity air jets to decontaminate surfaces
Best for applications where materials from outside must be cleaned before entering the cleanroom.
Key Features: High-speed nozzles (≥20–25 m/s) to blow off dust/particles Built-in HEPA filter and centrifugal blower Air shower cycle with programmable timer Double-door interlock system Ideal for material bulk transfer to ISO Class 5-8 areasHow to Choose?
LAF Pass Box when product cleanliness is critical
Air Shower Pass Box when surface decontamination is needed
We can do custom your cleanroom project (ISO14644 / GMP-compliant),and provide OEM/ODM support for distributors, contractors, and cleanroom integrators.