Fans are a great way to help boost productivity and can be placed very close to plants, to help strengthen the marijuana plant and move air around. A fan's ability to circulate air from one locations to another is measured in cubic feet per minute, so you should choose a fan based on the size of your grow room. Growers should find a fan with the capacity to circulate the room's air three times in one minute.
For example, if you have a 4ft x 4ft x 6ft grow room, then it is 96 cubic feet and you should find a fan that is at least 288 cfm (3 x 96). If you have a warmer grow room, you might want to remove the air up to 5 times per minute, so you may want to invest in a grow fan that is at least 480 cfm.
Mold is a fungus with microscopic spores that exist in the air and thrive in moist, warm, or nutrient rich environments. It is very bad for human consumption and can ruin an entire yield. Mold spores are all around us and the key to avoiding it is to avert the conditions they thrive in. A grow room should be regularly cleaned to remove spores. Intake filterscan help prevent spores from entering the space, and a proper ventilation system should vent any remaining spores out. A dehumidifiercan be your best friend in reducing dampness and eliminating mold growth.
Oscillating fans are commonly seen in homes during hot days to keep people cool. They can also be used in grow rooms to help bring the temperature down and circulate air in a grow room. They also help to simulate a breeze on plant limbs and branches, helping them to grow stronger.
Inline fans are used mostly in ventilation, and create a powerful suction that can help draw fresh air into your grow room, or remove and/or filter old air out. We recommend using a combination of both oscillating fans and inline fans to maintain ideal control over the air quality of your grow room.
A good ventilation system can be crucial to keeping your cannabis plants happy and healthy. In its most basic form, an open window can act as a ventilation system. With most grow rooms though, they need more fresh air than an open window can provide. Grow Daddy provides all of the tools that you need to build a custom ventilation system:
Active Venting: Almost all grow tents include a ventilation hole near the top to catch hot air that rises. The vent should be equipped with a fan to push air out, which is why it is "called active" venting. You can remove odors from the air by connecting your fan to a carbon filter.
Ducting: Ducting is simply used to direct incoming or outgoing air through the appropriate vents.
Passive Intake: Almost all grow tents include a passive intake vent near the bottom of the grow tent, along with screen to keep dust out. As air is removed by the active venting, air will be drawn in from passive intake vents. Make sure that there are no holes in the roof or walls to prevent false intakes and ensure that all of the air entering the grow tent is coming from the passive intake vents. Some growers will use afan to help control the amount of air that enters the room.
Filters: Filters can be used to remove odors from the vented air, and passive intake vents feature a mesh cover that will keep out dust, but if you want to prevent pathogens such as mold from entering your grow room, you may want to take a look at a Hepa intake filter. It's a little pricier but will ensure that the air entering your grow room is clean.
Inline Fans: Inline fans help to direct air into or out of a grow room. They create a powerful suction that cull pull air through the fan and into the direction you want to send it.