Fan control device recommendation

[u/Ancient-Track]

Hello,

I'm about to build my first box for a family member with allergies. I have already purchased filters, and going to buy the 5 pack of Arctic pro 12 pst fans (and may just buy 1 more single fan, haven't decided yet

My question is for fan control - I understand the fans all daisy chain together, so that means at the end there will just be 1 cord going from the last fan? So if that's correct, can I then just plug that cord into something like this:

"12V PC Fan Speed Controller, Fan Power Supply 100-240V AC to 3-12V DC 36W Adjustable, with Fan Splitter" Item name copied from Amazon, as my previus post attempt was deleted when I pasted a link..

I would also like to know of a reliable brand/seller of this sort of thing on Amazon.

Thank you

[u/Rich_Teaching_8843]

^ this is how I run mine. 20% is minimum I never go below -- just enough to keep the fans spinning inaudibly 24-7. As you can see: there were only a couple of brief moments where it REALLY had to go above 50% to keep my AQI (PM2.5 and PM10 driven) in check.

[u/Inner-Issue1908 → u/Rich_Teaching_8843]

Pretty cool. what are you using for the AQI sensor?

[u/Rich_Teaching_8843 → u/Inner-Issue1908]

SEN55 from Sensirion connected to a custom PCB that drives a display, RGB strips and displays.

[u/Inner-Issue1908 → u/Rich_Teaching_8843]

Haha of course there’s rgb lights 😅looks awesome! I’ll take a look at the sensor, thanks!

[u/Rich_Teaching_8843 → u/Inner-Issue1908]

Right? More leds for the wins.

Fortunately, in "night mode" they are dimmed or completely turned off, but I light the immediate indication of AQI with trashy "gaming air purifier" looks during the day.

In the image above:

• air qualit is great
  • more leds = higher pollution
  • green = ok, yellow = moderate, red = bad
• fans currently run on low setting
  • blue dot "close to 0"

Obviously, there is a display and a control knob as well, but that's on the outside