Filter replacement is calculated based on the time of use. According to our tests in Beijing, the DIY HEPA filter can last for about 1000 hours. If you switch on 8 hours the DIY everyday, seven days a week, you need replace the filter every three months. To find just how often you should change your HEPA filter where you use it, check out our HEPA filter lifespan calculator.
Learn more about our range of simple, no-nonsense DIY’S HEPA filters here »
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