Armor All FRESH fx Smoke X Car Air Freshener Vent Clip in Citrus Breeze scent features Smoke X Odor Elimination Technology. Our vent clips sleek, low-profile design will fit comfortably in your cars air vent providing an odor destroying fragrance that lasts up to 30 days. Odors are destroyed leaving behind a refreshing Citrus Breeze fragrance. Breeze down the highway with this sparkling aroma of a fresh citrus blend.