"A basic, low-output humidifier whose main attractions are a low price and a long warranty."
The 'up to 25 hours' runtime is achieved by throttling the mist to a minimum; for effective humidity in a small bedroom, expect to refill the 1.7L tank daily.
This product is suitable for someone needing basic humidification in a small space, like right beside a bed or desk. The long warranty makes it a low-risk purchase for a user who prioritizes longevity over high performance.
Anyone needing to humidify a large or even medium-sized room should look elsewhere. Users with hard water who are unwilling to buy distilled water will be unhappy with the resulting mineral dust.