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Sub-Zero Air Purification Cartridge and Water Filter Shelf Life


  • What is the shelf life of the air purification cartridge?
  • What is the shelf life of the water filter?
  • Is there an expiration date for an air purification cartridge?
  • Is there an expiration date for a water filter?


Sub-Zero air purification cartridges and water filters do not have a shelf life.

  • As long as water is not run through a water filter and the air filter is not plugged into a unit, there is no expiration date or "use by" date.
  • Filters are available for purchase through Sub-Zero’s Accessory Store.

For information on how long filters last in the unit, see:


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