Open loop or closed loop also known as a sealed room.
Sealed grow room vs vented.
Air vented or totally sealed.
If humidity co2 temperature and proper in room air movement osc.
Sealed no vents in or out.
This way co2 you pump into the room stays in the room and is not vented out.
Fans and scrubbing are provided adequately i have not vented a sealed.
All sorts of lighting are available for supplementing the sun with an outdoor grow including the usual metal halide high pressure sodium plasma etc.
In this very quick video i show my vent system.
Although this is a sealed room its essential to vent the room at least once per day in order to refresh the air get rid of ethylene alcohol build.
Grow room marijuana garden i was recently telling a buddy about the worst possible situation a medical marijuana grower can face.
This is known as ventilation or air exchange.
Co2 only works at very high levels which means you need a sealed grow room or grow tent setup in order to get the concentration high enough to be worthwhile.
Vented lights for a sealed room environment can work at times but can reduce production value up to 30 percent from the light bulb due to being behind a plate of glass and the fact that light.
With full control of my grow room s climate there is no need for venting unless something like catastrophic equipment failure causes it.
The first is efficiency.
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There are two different ways to set up a grow room.
I have found no benefit to venting sealed co2 enriched grow rooms.
The high levels of co2 recommended for plants are dangerous for.
An open loop system has open ventilation or a fan pushing air into the room and another fan exhausting air out of the room.
Your air run from another room or outdoors through the lights and vents outside of the grow room outdoors.
None of the air venting the lights ever comes in contact with the room.