DB of multiple fans

[JMicaelK73]

Hi guys, just wanted to see if anyone knows how to calculate the noise of multiple fans. So if I have one fan rated @ 14 db and then ad one more 14 db fan, what would the combined noise be.

Thanks Micael

 

[mindwreck]

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[JMicaelK73]

Thanks man, so how do you do when you ad more fans, #4,5 and so one. Do you take the total from 1 and 2 and ad the third or ???

Micael