The answer to 'how long will humidifier last' is that a well-maintained whole-home humidifier can typically last 8-15 years, while a portable humidifier may last 3-5 years. The lifespan of a humidifier depends on factors like usage, water quality, and maintenance.
Whole-home humidifiers are integrated into your HVAC system and tend to have a longer lifespan since they are less exposed to daily wear and tear. Portable units, on the other hand, are more susceptible to mineral buildup and may need to be replaced more frequently. Proper cleaning and descaling can help extend the life of any humidifier.