The answer to 'how long does humidifier last' is that the lifespan of a humidifier can vary significantly, but on average, a properly maintained humidifier will last 5-10 years. The longevity of a humidifier depends on factors like the type of humidifier, the frequency of use, and how well it is cleaned and maintained.
Portable or tabletop humidifiers tend to have a shorter lifespan of 3-5 years, while whole-home humidifiers installed as part of an HVAC system can last 7-10 years or more with proper care. Regular cleaning, filter replacements, and descaling are essential to maximize the lifespan of any type of humidifier.