Dehumidifier suggestions?

I'm looking at an Afloia mini dehumidifier(2200 cubic ft) $27.99 for 2x4x5 tent .My exhaust fan Is rated at 203cfm . I plan on having 2-3 plants in my setup .Is this over kill or a wise investment?

 

[Simplicio]

Neither.
You probably need a humidifier instead.
Subtract 5-7 F from air temp to get leaf temp, then stay in the green.

 

[Deweygthumb]

Even if the humidity in my region stays around 77% all the time?

 

[Simplicio]

Even if the humidity in my region stays around 77% all the time?

Would not have suggested a humidifier knowing that it's already 77%.

 

[Deweygthumb]

Sorry, I should have mentioned that in my original post. During the summer months here its like a sauna here.