(New no box )The Humid Air Standard Tub Humidifier Water Reservoir Chamber 37299 is a clear plastic square-shaped humidifier chamber designed for easy installation by simply dropping it into your bathtub or shower. With one faucet hole and no assembly required, this product is perfect for use in bathrooms or bedrooms. Manufactured by ResMed, this model ensures a consistent and efficient distribution of humidity to help soothe and nourish your skin during showers or baths.