The answer to 'how long does humidifier last' is that a well-maintained humidifier can typically last 8-15 years. The lifespan of a humidifier depends on several factors, including the type of humidifier, how often it's used, and how well it's maintained.
For example, portable humidifiers often have a shorter lifespan of 5-10 years, while whole-home humidifiers installed as part of your HVAC system can last 10-15 years with proper care. Proper maintenance, such as regular cleaning and filter replacement, is key to maximizing the lifespan of any type of humidifier.