is there such thing as too much ventilation

is there such thing as too much ventilation, my space is about 100cubic feet

my fan blasts 465 cfms into a carbon scrubber (so some cfm's are ultimately lost), is it too much? ( i hope not)

 

btw im using a 600w hps

 

I would say it should be good as long as it isn't to brutal of winds on the plants. You can by a variable speed controller to turn doe the speed a bit. Also will cut down on noise.

 

itll be that loud?

 

I ventilate my grow room of 850 cubic feet in excess meaning that the air exchanges complitely within 5 minutes. It is a bit noisier than i would want it to be but so far it has been working out very well and much better comparing to before i upgraded the vent system. I use squirrel fan for exhaust and inline for intake (intake duct is hooked up to the house AC unit and blows in cold air). Inline fan is dead quiet. I want to upgrade the squirrel fan which is terribly loud. Overventilation is only good!

 

I agree with Marclar in most cases. It is actually the humidity and temperature along with the co2 provided by the fresh air. I would remember that in late flowering humidity should be kept to around 45% in order to control budrot and powderey mildue. This is often accomplished by regulating the amount of air moved through the room. In veg higher humidities are more tolerated but filter intake air to prevent spores from entering the room. A furnace filter will help.

Temperatures should be kept around 80 degrees in flowering ideally IMHO. You dont want temps getting too low during the dark period late in flower as this caused molds as the humidity rises as the temps drop. Cooler air doesn't hold as much water and that is the relative part in relative humidity. Understanding these simple facts and relationships will make your grow healthier and more productive.

Temps too low often slow budding and too high causes heat stress on the plants. Either lowers yields but pot plants can handle higher temps for periods of time during the day. They will need more watering of course. BOG