Standard Fan Filter Unit

Standard Fan Filter Unit (FFU) is a self-powered cleanroom air filtration system that combines a motorized fan with a HEPA or ULPA filter to deliver uniform laminar airflow. Installed in cleanroom ceiling systems, it helps maintain stable ISO-classified cleanroom environments.

Designed for continuous operation, our FFUs feature stable airflow, low noise, energy-efficient performance, and easy maintenance. Multiple sizes, AC/EC motors, and filter options are available for various cleanroom applications.

Key Benefits

Uniform Airflow
HEPA / ULPA Filter
Energy Saving
Low Noise
AC / EC Motor
Custom Sizes

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Technical Parameters

Model	FFU-1175	FFU-575	FFU-615
*Size (LWH) / mm*	11751175265	1175575265	615615265
Airflow (m3/h)	<2600(60Hz) <3200(50Hz)	<1300(60Hz) <1600(50Hz)	<1100(60Hz) <1300(50Hz)
Air velocity (m/s)	0.45m/s (±20%)	0.45m/s (±20%)	0.45m/s (±20%)
Class	ISO Class 5
Noise	52-58dB
Position of testing noise	1m far below the filter
Frame material	Al-Zinc/Galvanized sheet/Power-coated plate/SS201/SS304/SUS316
Motor	AC Motor，Optional EC Motor
Control	3-Speed / 5-Speed Controller (Optional)
HEPA filter	Mini-Pleat HEPA Filter H13 / H14 (EN1822) ULPA U15-U17（Optional） 1170117069	Mini-Pleat HEPA Filter H13 / H14 (EN1822) ULPA U15-U17（Optional） 117057069	Mini-Pleat HEPA Filter H13 / H14 (EN1822) ULPA U15-U17（Optional） 61061069
Pre-filter	G4 415X415X10
Power Supply	220V/50/60Hz/1P
Weight	65kg	25kg	20KG
Installation	Ceiling Grid Mounted

Technical Drawing

The exploded view illustrates the internal structure of the Standard Fan Filter Unit, including the pre-filter, centrifugal fan, control box, HEPA filter, and mounting frame for easy installation and maintenance.

Industry Application

Standard Fan Filter Units are widely used in cleanroom ceiling systems requiring stable laminar airflow and high-efficiency air filtration. They are suitable for a wide range of ISO-classified cleanroom environments, including: