Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: I've had the unit on the max humidity level and the fan high for about 27 hours. I can only get a max of 30%-32% in the house.
Document: I really like the ability to set a desired humidity level (for me, usually 45 or 50% RH). Once that is done (with a simple push of a button), the unit will automatically power itself on or off as needed.
I have only had this item a month, but if it holds up, it will have been a great puchase. I live in a 925 sq. ft. apt. This unit, running on low, keeps it easily humidified. I have never needed the high fan setting, which is quite loud. The low setting is audible, but not a problem. The unit holds 2 tankfulls of water, one in the base. Each tankful lasts ablut 6 1/2 to 7 hrs, on low.
I bought this for our 1 level 1200 sq ft apartment and it does a good job keeping the air pretty close to the setting in every room, but we have to constantly run it and refill it about twice a day. Once it runs out the humidity drops pretty fast in the house, but its been bitterly cold and dry this winter. I don't think for the size and price you could do much better.
I placed the humidifier by the cold air intake to help increase humidity throughout the house. The humidifier did help increase humidity throughout the house, but not as much as it did in the living room where it is located. I had to place a small ultrasonic humidifier in the bed room to reach a desired humidity level. If you want a whole house improvement I would go with a humidifier that is attached directly to your heating system.
Recently bought it at a local retail store, and I have had no problems so far. It raises the humidity in my bedroom (221sq. ft.) rather quickly on the highest fan setting. The highest speed is loud, but I use it when I get home for a short time and then lower it.
Pros-for the first few hours, it will boost up the humidity. With a low fan speed, it is pretty quiet. It's easy to move around and the detachable tank is wonderful. The filter is easy to replace.Cons- after a few weeks of working perfectly, it would only work a few hours after turning the system on. Anything above a low fan speed will make the machine vibrate and is very loud. The case is built horribly and the top doesn't line up with the bottom.
My cats like to go into and out of the bedroom, and sleep there often during the day, so the last option of leaving the door slightly open is the one I use. To be fair, even at this door opening setting the humidifier occasionally runs for several hours without getting closer than 6 or 7 degrees to where I've set it at. So I will raise the setting by five degrees to pull it further up.
Not the power house I expected for the price without the high speed noisy setting.
I have had this humidifier now for 2 years and it is keeping our living area (approx 1200 sq ft) plenty comfortable. I am having no issues with leakage or spillage and it is very quite in the low mode. It does get a little loud in high mode but low mode is all that we have needed anyway.
Reliable, but high fan very noisy. I wish filter could be cleaned instead of having to be replaced every season.
Answer: If you are having to regularly fill your removable tank (2 to 3 times a day) your home is likely so dry that it will take awhile to get the humidity up, but if the tank isn't emptying regularly, the wick/filter may not be installed correctly, if it is not, it won't transfer the water to the air correctly,we run ours on medium fan speed and go through 2 to 3 tanks of water daily, hope this helps:)