Citrus II-Solid Air Freshener offers lasting dual-action by absorbing odors in the health-care environment and freshening the air. Ideal for doctors" offices, hospitals, nursing homes and home care. Using a unique formula with activated charcoal, Citrus II Solid Air Freshener quickly absorbs odors and freshens the air with a lemon scent. Opened disk of air freshener provides convenient, continuous, odor control that freshens up to 60 days and is effective in areas up to 350 square feet.