Try the new innovative way to freshen the air with Glade Sense & Spray Starter Kit. Click to print & SAVE $3.50 on Any ONE. Glade® Sense & Spray® Automatic Freshener detects when someone passes by, instantly releasing a burst of fragrance into the air. To conserve the refill, the sensor will turn off automatically and will not spray for 20 minutes. Available in Lavender & Vanilla, Hawaiian Breeze & Apple Cinnamon.