The Bionair cool mist humidifier is a must have for your house in winter months when your heater is blowing hot dry air. This humidifier will add moisture to your room up to 700 square feet, reduce static electricity and increase freshness in your room. The Bionair cool mist humidifier has ultra-quiet operation that will not interfere with your sleep or your daily routine, sturdy tank handle allows for safe and convenient transportation and handling and it has reusable filter that can be used over and over again which saves time and money. With FilterClean monitor is easy to monitor filter life, it will show you when filter is good or needs to be washed. The Programmable digital humidistat monitors and maintains ideal humidity comfort zone so you can focus on more important stuff. But best of all, it has antimicrobial protection that is infused in the plastic to help prevent the growth of bacteria that can cause stains and odors or adversely affect performance!