Anonymous asked in Consumer ElectronicsOther - Electronics · 2 months ago

How often does the HEPA filter need to be replaced in an air purifier which is running 24/7 and is never turned off?

1 Answer

  • 2 months ago
    Favorite Answer

    Unfortunately there is no perfect answer 

    because the amount of stuff a filter collects varies from hour to hour, day to day. and week to week. 


    The most reliable, if terribly vague, answer is "When it becomes sufficiently clogged that it excessively restricts air flow."      

Still have questions? Get your answers by asking now.