Non-turbulent airflowThis kind of e

Non-turbulent airflow
This kind of enclosed, controlled environment has the treated air enter through a HEPA filter wall. The horizontal air velocity is 72-108 feet per minute (FPM) and it’s exhausted through an air return on the opposite wall. The design works for several class cleanrooms per Federal Standard 209C: Class 1, 10 or 100, with regard to the air “upstream” from the work area as, naturally, the air downstram depends on how contaminating the workstation is, though should exit via the return air wall. Finally, this room, as with all others, must be subject to rigid cleanroom techniques of the personnel, as well as a routine, diligent cleaning program.