ajgrows
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I have the EVDC300 and am using these replacement filters. That should be more than enough power for a 4x4 if you're running it inside the tent. Not sure if it would keep the lung room humidity that high . I have to refill about every 24 hours to keep the humidity near 70%. The larger capacity model won't humidifier quicker, but you won't have to refill as often. Filter consumption is obviously double w/ 2 tanks/fans also.Which vornado humidifier do u have ? I need a bigger/better one. I guess having the ex. Fan on a controller helps also. Anyone have recommendations ? I have a 4×4 tent in a 12x16 basement room. Tks.