4″x4″ High-Frequency Ceramic Purification Plate. Refer to the original pureAir 3000 or GT3000 owners manuals for instructions.
When to Clean
The plate should be cleaned every 30 days. You can use the Ozone Plate Cleaning Kit to clean the Ceramic Purification Plate. Ammonia can also be used to clean the plate.
How to Tell if it’s Working
When the air purifier is on, the purification plate can be detected by smell when the unit is not set on PCO mode.