FilterStream AIRTAMER A300 - Manual (Page 6)

Section 4: Set-Up
Install Battery
One CR2032 coin cell battery is included with your AirTamer. To
provide power to your AirTamer, please install the battery as follows:
1. Slide off the BATTERY COVER.
2. Insert the included CR2032 coin cell battery into the battery
compartment with the positive (+) side facing up.
3. A new battery will provide approximately 22 days of continuous 24
hours per day cleaning. When the flashing blue “ON” indicator no
longer blinks, it is time to replace the battery.