How can you determine if a fan is better at blowing or sucking?

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Determining whether a fan is better at blowing or sucking air depends on the specific system design and application. Factors such as contamination, airflow patterns, and turbulence play significant roles in fan performance. In environments like bio-hazard handling rooms, the orientation of fans is critical to maintain air quality and pressure balance. While fans can theoretically perform equally well in either position, practical tests often reveal differences in airflow efficiency due to system design and external conditions. Ultimately, understanding the nuances of airflow dynamics and system requirements is essential for optimizing fan placement.
  • #31
berkeman said:
when it was hitting the fan

or at least the fan was hitting it

BoB
 

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