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FFU (Fan Filter Unit) is a modular air purification unit with an integrated fan and filtration system, widely used to create cleanroom and dust‑free environments.
The fan draws in air from the top. After passing through a pre-filter, the air flows through a HEPA/ULPA filter with a filtration efficiency of over 99.99% for 0.3μm particles. Clean air is then distributed evenly in laminar or turbulent flow to achieve continuous air purification.
Energy-saving centrifugal fan (mostly brushless DC motor)
H13/H14 HEPA filter or U15/U16 ULPA filter
Sheet metal / stainless steel housing, plenum chamber and diffuser system
Speed control and centralized control module
Modular design, can be installed individually or in arrays, compatible with cleanroom ceiling grids
Adjustable airflow speed, flexible layout, easy for renovation and expansion
Low noise and energy-saving, reliably achieves ISO Class 1–5 cleanliness
Duct-free design, easy installation and maintenance
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