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Fan Speed to keep down smell?

Discussion in 'Newbie Central' started by Glrrr, Jan 5, 2017.

  1.  
    Glrrr

    Glrrr Member

    I have a 2'x4'x5' tent with a 6'' max pro and filter attached. However, I kinda got ahead of myself and cracked 4 different strains in it. Now I'm concerned that I might have to run it full blast to keep down the smell. Anyone know if I can just run it on low for smell control? I already built an mdf box around the fan and use a controller, but can still hear this thing running through the door. Thanks guys.
     
  2.  
    Chef420

    Chef420 Well-Known Member

    Smell control doesn't necessarily depend on fan speed. The fan only needs to be working strong enough to create negative pressure in the tent i.e. The sides of the tent are sucked in. As long as you see that the air is moving in the right direction and being scrubbed through your filter.
    Fan speed is also a way to control temperature in your tent but for smell you just need negative pressure. Not too much though. Once you get it "dialed in" you'll have a balance of temp control and negative pressure.
     
  3.  
    Glrrr

    Glrrr Member

    @ Chef420 Sweet that's what i was hoping for. Thank you for the quick response.
     
    Chef420 likes this.
  4.  
    chemphlegm

    chemphlegm Well-Known Member

    its called a stink sock, get some
     
    Glrrr likes this.
  5.  
    Budley Doright

    Budley Doright Well-Known Member

    In actual fact you may run to much air through the filter by turning it up. Your filter will be rated for max CFM and anything over that will allow for odour to pass through.
     
    Glrrr and coreywebster like this.
  6.  
    coreywebster

    coreywebster Well-Known Member

    Chef420 said it all. Bang on. As long as your filter is quality and replaced when needed you will be fine.
    Regarding the noise, fans run at 50hz and that hum is one of the hardest sounds to stop, it can travel through brick.
     
    Chef420 and Glrrr like this.
  7.  
    Glrrr

    Glrrr Member

    Yeah It's a pain, i picked up some insulated ducting I'll eventually add to my setup. Thank you
     
  8.  
    Glrrr

    Glrrr Member

    Thank you, I'll check it out.
     
  9.  
    chemphlegm

    chemphlegm Well-Known Member

    [​IMG] amazon.com. cant grow without at least four of them running 24/7 here.
     
  10.  
    Budley Doright

    Budley Doright Well-Known Member

    So I just had a look and is that fan pushing 420 CFM on high? What size of pipe you running, 6"?
     
  11.  
    Glrrr

    Glrrr Member

    It's max speed is 420 cfm, however I use a 15 amp controller and keep it real low. Just running it enough for negative pressure. The max fan I have is a 6'' fan so I am using 6'' ducting. I'm also checking out the vortex s-line for my veg tent. That thing looks bad ass! I bet with insulated ducting and an MDF box it's a whisper.
     
    Budley Doright likes this.
  12.  
    Budley Doright

    Budley Doright Well-Known Member

    It just amazes me that fan manufactures use 6" for 450 CFM. The noise from the velocities alone are ridiculous. 450 is 1/3 of most big home furnaces lol.
     
    Glrrr likes this.
  13.  
    Glrrr

    Glrrr Member

    Wow really, lol gotta keep that smell down.
     

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