The CareFree Humidifier for a medium room... The CareFree Humidifier Wickless features our patented wickless technology. Because there is no wick to clean or replace ever the CareFree Humidifier Wickless saves time and money. Antimicrobial to inhibit growth of mold, fungi, and bacteria Exclusive ToteAway Tank for easy maintenance Humidistat that monitors and controls humidity Mechanical Humidistat for fully adjustable humidity control NightGlo Night Light Permanent wick that never needs replacing Regulated Release.