Carbon Dioxide is an essential building block of photosynthesis and many growers try to raise CO2 levels in order to increase growth rates. There's no denying that if all other growth and environmental factors are right, adding CO2 to your growing setup will have to provide benefit and lead to an increase in yields.
Perhaps the best application of CO2 in a grow room is in closed systems. This involves a grow room where there are no extraction fans venting the room to the outside world. Instead, the air within the room is filtered, kept moving with circulating fans and enriched with CO2. We supply Exhale bags which use a symbiotic relationship with fungi to release a fresh supply of CO2.