Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How high can you get the humidity in the room? I want to use it in a walk-in humidor to maintain 65 to 70%humidity.
Document: No more waking up to dry eyes, noses, & throats.I can't believe people are complaining about refilling it. Use a pitcher! The unit tells you when it's empty on the display so you just Convert Gallons to Liters. Hint:  It's 3.5 sun tea pitchers. If you want to check the level you want to turn on a light in the room & just look inside for the Max Fill line. Nothing complicated about this unit.This humidifier is stylish & functional! &#60;3
I do give them props for putting it on rolling casters. It's really easy to shove into a closet if you're having company and don't want to look at an ugly appliance.I've only had this for about a week now, but it seems to do the job fairly well. The air doesn't seem quite as chilly since I've been humidifying it; which is why I wanted a large humidifier. You can set the desired humidity and the system will turn itself on and off to maintain that.
When I turn on my unit it intially reads out 8-10% more than the actual room humidity, that's a real problem right off the bat. I was expecting to get a humidistat that measured moisture in incurments of 1% so a person could fine tune it,but this control measures in 5% incuremnts. Why have digital control that is much less effective than knob control.
The fan is 9 speeds and who needs 9 speeds. The upper speeds dry out the top of the wick filter and I get mostly dry air coming out of the side vents,lowering the room humidity. The best thing about the purchase was Bic Superstore has great survice in offering me a second unit at no charge.I said thanks but no thanks.
On the coldest days (0 to 15 degrees) the units can barely maintain 45% humidity with fans on setting six. On warmer days (above 32 degrees) the first or second fan speed does the trick. Unless you have a built in air moving system in your home this, or any other unit will NOT humidify the entire house. Even with a fan system, one unit would have to run on a high, loud fan speed much of the time.
The Thermostat constantly reads the humidity level in your house and can be set up to 65%. Fan speeds range from 1-9. The fan kicks on and off depending on the humidity level indicated on the thermostat. It is important to know this unit dispurses air from both the right and left sides of the unit and get its air intake from the back.
I bought this for our bedroom. I use it for an additional night stand. I use a watering can to fill it and it very easy to fill. You have to pay attention to the fill line. You really don't want to over fill.
The second big drawback is there is no water level indicator; however, you can get down on your hands and knees and peer in the water intake space every time you want to check the water level if that's your thing. It's an attractive, reasonably compact unit but I am sorry I ordered this one.
We love this unit. Not only is it handy to have the refill identification but it looks very nice in a room. We have an older home and this has done a great job keeping the air quality good. The only concern I have is where to get replacement filters for this as I have looked at local retailers and no one carries them in southwest Minnesota..Wendy
It's really hard to buy anything anymore based on opinions in reviews online. It's clearly very hard to please a lot of people! I have had this humidifier for a month, as I didn't want to give it a great review straight out of the box and have to come back to update. I think it works great! Yes it's true that you will have to use a flashlight to check the water level.
Answer: We have a fairly open upstairs level and have attained 60's. A closed in room would definitely be easy to control.