How do I know when it's time to replace the filters?Updated 2 months ago

For the iAdaptAir 2.0 Press the i or toggle button on your control panel to view the remaining filter life percentage. When the percentage reaches close to zero you should replace the filters. This is typically between 6 to 24 months depending on environment and usage. Once you replace the filters, hold down the toggle button to reset the timer.

For the iAdaptAir Legacy Purifiers once the red filter light icon with the arrow pointing up turns red you will want to replace the filter this is typically every 6-12 months. 

For the 94 HEPA Air Purifier: The 94 HEPA filter cartridge should be replaced every 3 months for optimal efficiency.