A dehumidifier should be monitored when used to prevent a fire hazzard.
Turn it off
It is okay to run a dehumidifier and central air at the same time. This will help keep the costs down for the air conditioner. If the dehumidifier is running, the air temperature will cool off quicker and the air conditioner can be turned up a little higher.
Yes, you can run a dehumidifier with windows open, but it's generally not effective. Open windows allow outdoor humidity to enter, which can counteract the dehumidifier's efforts to remove moisture from the indoor air. For optimal results, it's best to close windows and doors while using the dehumidifier to maintain a controlled environment.
A Carrier brand dehumidifier propeller fan costs $114.88. The fan blade set kit itself costs only $14.99 (from Emerson).
There is to much humidity in the house use a dehumidifier they can be expensive
dehumidifier has a cooling coil and a heating coil. When air is passed through the coiling coil, moisture in the air condenses and drips in the bucket. Heating coil heats the air back to room temperature.
I'd give it 3 days.
After checking out some reviews online the best brand of dehumidifier seems to be Blyss, they are cheap to buy and run, these dehumidifiers can be purchased at all hardware stores.
The dehumidifier would in a sense "win" this battle. Since the dehumidifier sucks water out the air and the humidifier adds water to it. The humidifier would run out of water before the dehumidifier sucks all the water out the air.
Dehumidfiers can consume $150.00 per year in electricty. To reduce costs, look for a unit that is Energy Star rated. One high-capacity unit is less expensive to operate than two less expensive low capacity units. Two of the most efficient are Sylvane and Therma-Stor.
If you are staying in areas near big water bodies and if you are storing something which is moisture sensitive, if you have expensive paintings on wall, if your walls are getting fungi or your closed room has typical damp smell then you need dehumidifier.