Do I need a fan in my grow tent? 2020 Update

YOUR GROW ROOM NEEDS AIR CIRCULATION
The reason for ventilating a grow room is simple; cannabis plants need fresh air. Therefore, every grow-op requires air exchange. That means cool, fresh air in, and stale, hot air out. Too many growers get ventilation wrong and encounter all kinds of problems later in the grow. Bugs, fungi, and mould love a hot, humid environment with poor airflow. Like it or not, ventilation is essential to cannabis cultivation.

How to Ventilate Your Grow Room?
There are a number of things that go into the setup process of the grow tent ventilation and I will break them down, step by step:

Ideally, the essential bit of the ventilation system is having the inline duct fans and the carbon filter working for you inside the grow tent for weed. You need to have proper ducting to connect the filter and the fans together.

Essentially, when you have the fans working properly, you will control the air flow and circulation. Here are some details that would be ideal.

Selecting the proper grow tent fan size:
The first question you’re probably asking is “What’s the proper grow tent fan size?” When you’re replacing air in a grow space, the general rule of thumb is being able to replace the air once per minute. Then you need to make a few additional considerations, such as 25% air resistance if you add a carbon filter, and 30% resistance for each 90 degree bend in your ducting.

  • 2x4x5ft grow tent: 100cfm
  • 5x5x6.7ft grow tent: 325cfm
  • 8x4x6.67ft grow tent: 400 cfm
  • 10x5x6.67ft grow tent: 640cfm


VIVOSUN Inline Duct Fan with Carbon Filter Kits

VIVOSUN Air Filtration Grow Kits

Inline Fan:
Energy efficient & quiet operation
Lightweight & super easy to install.
Balanced blades are ideal for boosting air supply and venting exhaust air.
Engineered for maximum boost with minimum noise.
Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
Solve air delivery problems without major system rework or expense.
Can be installed in any location, such as greenhouses, tents, etc.

Carbon Filter:
VIVOSUN Carbon Filters are perfect for the following applications: Grow tents, cupboards and cabinets.
Anywhere without a roof/ceiling cavity to displace extracted air into.
Air-cooled lighting.
Lower-level floors of double/triple story houses.
Window to window ventilation applications.
Hot or cold "filtered air transfer" from one air conditioned room to another.

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