Fan Filter Unit ( FFU )


FFU, the fan filter unit is a device of combination of fan with filter, or maybe called ” filter device with self contained motor ”, normally it`s be installed at the end of cleanroom HVAC system tunnel. Often be placed on the frame of ceiling grid. Upside is fan motor, and downside is HEPA filters. According the difference of cleanliness level, the air filters can be different efficiency HEPA filters, such as H13 or H14, U15 and so on. Fan filter unit aim to provide clean air to the whole cleanroom air system. The fan filter unit to maintain normal airflow of the cleanroom system, not only to conquer HEPA filter pressure, but also overcome the resistance of whole air tunnel system. FFU is very easily to design and install, airflow rate adjustable easily, so it`s become very popular in the industrial air clean field.

Application: be applied for every cleanroom from class 100 to class 10000, also can be used to make super clean production line, laminar flow hoods, clean booth, clean closet. It`s very common is field such as optical, LED, bio-medicine, fine machine, PCB, food process, semi-conduct, micron electronic, laboratory.

The Features of EawayFilters` FFU fan filter unit

  1. Size 1175*575*320 or 1225*615*320mm, noise from 52-56 db;
  2. The fan filter unit separated from HEPA filters, HEPA filters can be replaceable.
  3. High quality fan, PCI back centrifugal, work hour can be 50,000 hours.
  4. Low power consumption, centralized control, stable performance and low noise.
Specifications and Details
Efficiency H13 99.95% EN:1822
Filter depth 280-320mm available
Filter media Waterproof glass fiber
Frame material SUS, Al-Zn, Coated Metal
Motor Backcentrifugal fan
Customized size Available
Power 220V 50Hz or 110V 60Hz
Max Operating Temperature 175˚F (79˚C)

Tech Data

Model 122S 122Z 117Z 61Z 57Z
Airflow (m³/h )






Noise (Db) 54-60
Efficiency H13-U15
Cleanliness Class 100
Electric 220/110V
Power 360W 180W 180W 145W 75W
Size (mm) 1175*1175*320 1225*615*320 1175*575*320 615*615*280 575*575*280
HEPA (mm) 1170*1170*69 1220*610*69 1170*570*69 610*610*69 570*570*69
Pressure drop


Coarse filter

nylon mesh or pleated pre filter

Wight 50Kg 25Kg 23Kg 15Kg 10Kg
Air velocity 0.45m/s±20%

Customized size is available, air pressure drop ± 15% around;