This is a good heater for home use. However, it is not enough as humidifier or air purifier. There is no steam or mist and it only has a wet cloth filter rotates. Just like hunging a wet towel in a room. It does not have sucction to clean air, only whatever goes on a cloth part gets back in a water tank.
Because of my building's "forced air" heating system, my apartment was too dry. Besides buying a humidifier, I also bought the Ionic heater/humidifier. I am able to get to the level of 30 % humidity now.
After trying this product for only 3 days I was very disapointed. I purchased it primarily as Humidifier. Does not have sufficient Humidity output. My rooms are small in the house and even after running this unit all night the humidity level did not change at all. Air was just as dry in the room as before. The water tank that is rated for a 2.2gal daily output is very small and fits less then a gallon so it didn't even last through the night. I tried this as a heater as well in my bedroom and the fan was just too loud.
I have a 2200sf house and this humidifier is not big enough to do the job. The tank should be at least 3 gal. or more. Actually the actual size of the water tank is only about a gal. so there is some false info about the tank. The machine requires filling 3 times a day for normal use. I have not used the heater part yet so can't rate it.