1.) Peel off adhesive backing on both holder tips.
2.) Align holder with bottom of Roomba as shown in diagram. Center the holder over the vent making sure the adhesive does not cover the vent slits.
To remove air freshener, push in and up with thumb right below Yankee Candle label while pulling back jar top of holder.
3.) Press holder firmly onto Romba making sure the holder tips are flush with the robot.