SEMI F111 - Test Method for Equipment Fan Filter Unit (EFFU) Particle Removal -

Member Price: $130.00
Non-Member Price: $170.00

Volume(s): Facilities
Language: English
Type: Single Standards Download (.pdf)
SEMI Standards Copyright Policy/License Agreements

Revision: SEMI F111-0413 - Current



This Test Method covers a procedure for measuring particle removal characteristic of equipment fan filter unit (EFFU) installed inside equipment.


Since EFFU is an assembly of particle filter, fan, and motor, the integrity of these parts is very important for the performance of EFFU. So a conventional particle removal test method for particle filters is not suitable to evaluate EFFU particle removal performance.


This Test Method defines an evaluation method for EFFU which is installed inside an enclosed space to remove particles that are generated inside process equipment. The particle removal performance of EFFUs is usually depending on the performance of filter media and air flow rate. To understand a performance of an EFFU, the filter media characteristic, air flow rate and the integrity of EFFU parts should be considered simultaneously. This Test Method is intended to demonstrate the system performance of EFFU.


Referenced SEMI Standards

SEMI F38 — Test Method for Efficiency Qualification of Point-of-Use Gas Filters

Interested in purchasing additional SEMI Standards?

Consider SEMIViews, an online portal with access to over 1000 Standards.

Refund Policy: Due to the nature of our products, SEMI has a no refund/no exchange policy. Please make sure that you have reviewed your order prior to finalizing your purchase. All sales are final.