This is an awesome humidifier by Honeywell. My husband bought this unit in 2011 to use while he slept at night to help open up his passage ways to prevent coughing attacks during the night due to allergies and snoring. This unit is silent, compact and does a great job at performing how it should. There are different settings that you can adjust to your liking to suit your needs. It's very easy to use this humidifier and minimal to no effort to set up. All it takes is filling the unit/canister which pops out easily, inserting the filter and plugging it in and setting it. I love the unit in black as oppose to white because it looks very sophisticated and it's actually hard to tell by just looking what the unit actually is. It is sleek and fits in tight spaces which I like to save space in the bedroom or wherever you place this unit. If you're suffering from any type of sinus or respiratory tract illness, common cold or flu. Honeywell's humidifier will work effectively to add moisture to the air to help you breath better and relieve congestion. I did not encounter having to replace the filter often and I usually would wash mine really well and let it dry to reuse it but obviously that is personal choice and the filters are not expensive at all to purchase more. I am very pleased with this humidifier and anytime it is needed my family and I use it. Output Volume This unit puts out a good amount of moisture efficiently and at a quiet volume. Performance Honeywell's humidifier will last years with proper care. Ease of Cleaning Cleaning this unit is easier than cleaning a fan. You just remove the cover and rinse off if needed and wipe down the inside if it needs it. The filters come out easily and allow for convenient access to cleaning. Durability This unit will last years without having issues. I have owned mine a few years and had used it religiously after buying it and it has worked great without failing. Design I absolutely love the design of this humidifier. It is thin and sleek. Sharp and sophisticated. Lightweight and compact.