What Is the Air Purification Cartridge and When Is It Due?
Table checked byDean HalvorsenTradeRefrigeration technician — sealed systems and airflowHoldsEPA 608 certifiedDated
| Question | Answer | Threshold | What to do |
|---|---|---|---|
| What it does | Tackles the ethylene gas produce gives off | Fruit and greens turning sooner | Check the reminder is not overdue |
| How long it lasts | About 12 months | Reminder shown on the control panel | Fit a new cartridge, then reset |
| Where it sits | Back wall of the refrigerator | Drawer models: back of upper drawer | Only on units equipped with the system |
| The used cartridge | Its lamp contains mercury | Ready to throw away | Follow local disposal rules; earth911.com helps |
| Call when | a fresh cartridge is in and reset, yet the reminder returns or an odour stays after cleaning. Sub-Zero Repair Issaquah, (425) 272-6613 | ||
Changing it takes two moves. Lift the outer cover from its bottom edge, then fold the black inner cover down and the cartridge pops out; the new one goes in connector-down and both covers close. A Designer panel then walks you through the reset, and its Snooze button holds the “Change Air Purifier” reminder off for 24 hours. On a Classic unit the indicator flashes when it is due, and holding PURE AIR for five seconds resets it.
Pair the change with the water filter’s date. If the reminder will not clear, call Sub-Zero Repair Issaquah at (425) 272-6613.
- 1Fan in its housing
- 2Air duct
- 3Vent panel
The short answer, then what people ask next
What Is the Air Purification Cartridge and When Is It Due?
It is a factory-fitted cartridge on the back wall of the refrigerator, found on units equipped with air purification, that deals with the ethylene gas fresh food releases. It lasts about a year and the control panel flags when it is due. Questions go to Sub-Zero Repair Issaquah on (425) 272-6613.
Does every Sub-Zero have one?
No. The guides describe it only for units equipped with an air purification system. If your control panel offers no purifier setting and your use-and-care guide has no cartridge section, the unit was built without one, and there is nothing on the back wall to change or reset each year.