The ResMed 37299 Humid Air Standard Tub is a square-shaped humidifier chamber made of clear plastic. It does not require any assembly and is designed by the reputable brand ResMed in Australia. This bathtub is ideal for use in the bathroom, providing a convenient and efficient way to add moisture to the air during showers or baths. Its sleek design and easy-to-use functionality make it a practical choice for maintaining a comfortable and healthy environment in your home.