Purex Crystals In-Wash Scent Booster, Fresh Mountain Breeze, delivers up to 21 weeks of freshness out of storage, keeping towels, sheets, and clothes smelling clean and fresh. Designed with nature in mind, Fresh Mountain Breeze brings floral and woody fragrance notes to your laundry. It fights odors to provide true freshness and is easy to use; simply add directly to the washer drum along with your liquid detergent. Safe for all fabrics and household items including towels, activewear, and children’s sleepwear, and can be customized so you can adjust scent strength to your preference. Works in all washing machines, including high-efficiency (HE) models, and in all water temperatures for long-lasting freshness