Decorate the air with notes of crisp air, fresh laundry and lily of the valley using these Glade Automatic Spray Air Freshener Refills in Clean Linen scent. This air freshener fragrance is crafted by master perfumers and infused with Essential Oils. To open, squeeze side ribs while pulling holder sides apart. Insert spray refill and choose the time setting to release fragrance. Enjoy busts of fresh scent every nine, 18 or 36 minutes.