air coolers and dehumidyfiers

czarsosay said:

is air coolers and dehumidifyers a good substitute for exhaust in grow rooms

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dankypot said:

only if you have c02.the venting brings in the ambiant c02 thats in the air . with out fresh are coming in the plants will use up all the c02 thats in there and will need more c02. u could get a c02 generater or a regulater and tank kinda pricey. good luck

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