4x4 Grow Room Required Cfm

Divide 8 by 3 and you get 2 7 anything less than this and your cannabis plants won t be getting enough fresh air.

4x4 grow room required cfm.

Most 4x4 tents measure 48in x 48 in x 80 in. If you stay with a 400mh you don t need a large 200 cfm or less fan or air cooling. Let me give you an example calculation for a 4x4 grow tent which is a pretty common size among indoor growers. Once you ve figured out the size of exhaust fan working out the grow room intake fan size is pretty simple.

In this example 96 divided by 5 18 24 cfm. There should be a slightly negative. To determine what your cfm requirements are simply divide the volume of your room by 3 minutes. Carbon filters are rated for different cfm and having smaller components would save you money and keep the noise down.

So to replace the air every three minutes you need your cfm to equal the volume of your grow room divided by 3. Ideally you will want a ventilation system that can exchange the air in your grow room at least once every three minutes. Finally the grow room extractor exhaust fan calculator suggests us to go with a fan of 840 cfm of size. If you go big 1000w you should run a small 200 cfm or less for odor control and a larger fan 300 cfm dedicated to air cooling your bulb.

Cfm calculator determining the correct size air filter for grow room ventilation is important to maximize efficiency. Use the cfm calculator to find out what your air flow requirements are to exchange air in your grow room every three minutes and suggested filters to meet these requirements. The term cfm is an acronym that stands for cubic feet per minute a term used to describe a fan s efficiency in terms of airflow. Exhaust fans are usually rated in cfm or the amount of air moved in cubic feet per minute.

Naturally if you buy a 96 cubic foot per minute cfm fan you would be able to exhaust the whole room in one minute. That s why some of the most important marijuana grow room factors are air exchange exhaust fan cfm cubic feet per minute and odor control. If you divide this number by 5 you get the smallest cfm cubic foot per minute that you would want to go with. So the total volume of air in a 4x4 grow tent is 4ft length x 4ft width x 6 667ft height 106 67 cubic feet.

Done with the grow room exhaust fan size calculation let s bring some fresh air in through the grow room air intake fan now. The proper size fan for a 4x4 grow tent.