air flow question!

[budboy]

hi guys i have constructed a grow room in a loft coved with mylar .. my question i will i be able to just use a powerfull fan will that be enough for the air flow if the temp is at 25? it seems quite windy in the room so i think this would be ok? the room is 6 ft tall!
any help would be great!

[Garden Knowm]

you should really try to get an exhaust fan so you can bring in fresh air... more specifically... you want to get C02...

looks like you are off to a great start...
25 celcius is equal to 77 farenheit correct?

77 Farenheit is perfect!!

: )