The Holmes Comfort Select will far exceed any expectation that you may have. My last Holmes had been used almost daily for the past 15 years before I upgraded to this model. It is such an affordable humidifier, so efficient, so quiet and SO effective that it becomes a trusted family member. Ours has been used throughout the years for croup, sinus infections, allergies, congestion and asthma. I can't imagine our home without this humidifier to depend upon. Output Volume We have a 400 square foot bedroom, which is this humidifier's permanent home. I have never had to turn it up more than a couple of clicks to keep the air comfortable to breathe, dry hair and skin at bay and our bedding, dogs and clothing static free. Performance Holmes humidifiers outperform every other brand, hands down. They have obviously evolved over the years, but the quality remains top notch. We run ours approximately 10 hours every day and it remains whisper quiet, does not guzzle water, uses very little energy and is now operated with the touch of a button. Ease of Cleaning Change the filter, run some vinegar and water through it occasionally and wipe it off. It is that easy. Durability I have had a couple of Holmes humidifiers over the years. I bought this model to replace my 15 year old Holmes. It hadn't stopped working, but the motor was slowing down some. We have 2 others in the house that are approaching 10 years. THAT is how durable Holmes machines are. Design The design is basic, but efficient. The tanks are a bit heavy when full, but they do not leak; Ever. For something as simple as a rubber seal to last so many years and still seal tight is a testament to the design quality.