So Ive been having a humidity problem since i started flowering, as fall progresses Ive noticed the humidity dropping for us(40-30) but today I went in my room at first light and the humidity was 19%!! That's the lowest Ive ever seen it, so I put a big container of water(10 gallon) in there to try and add some moisture along w/ a little cheesy vicks humidifier(probably the cheapest u can buy) and I misted my room and turned off a fan

...and my humidity is barely at 32%. Now what I'm thinking is that my room exhaust fan is just too strong and that whatever moisture is in there , just gets sucked up too fast...I mean I have A giant charcoal filter(like 32 inches wide,3 ft long,8")...and a vortex fan sucking 650 cfm...but my room only requires 275 cfm(i figured w/ the filter and 20-30 feet of ducting it balanced out....but Im not sure now?)

So I was thinking of just getting a good sized humidifer($100-200,one that could handle 600-1000 square ft and has at least 1.5-3 gallon container)

you think this would fix my problem? or should I be thinking differently?any recommendations?