HEPA air filters

noltnercr03

Well-Known Member
Hey i do not have a steady exhaust and was wondering about the hepa air filters and also wondering if anyone found one with a humidifier. The humidity in my grow room is below 20% and not sure if that is good or not but would like to raise it to about 30% once the plants start budding. Just wondering if anyone has had success with these filters?
 
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