Until recently, most bathtubs were roughly rectangular in shape but with the advent of acrylic thermoformed baths, more and more shapes are becoming available. Bathtubs are typically white in color although many other colors can be found.
Modern bathtubs encompass an overflow and waste and may or may not have taps mounted on them. They may be built-in or free standing or sometimes sunken.
A bathroom is a room that may have different functions depending on the cultural context it is used in.
Ground-fault circuit interruptor electrical sockets can reduce the risk of electric shock, and are required for bathroom socket installation by electrical and building codes in the United States and Canada. In some countries, such as the United Kingdom, only special sockets suitable for electric shavers are permitted in bathrooms.
In its literal sense it means "a room with a bath", but as bathtubs have partly made way for showers and steam showers, the more general sense of "a room where one bathes" makes more sense. There can be just a shower or just a bathtub or both, sometimes combined and sometimes separate (in which case the bathtub may have a second shower). Usually, it also contains a handbasin or sink and often also a toilet.
In plumbing, a sink is a bowl-shaped fixture, usually made of porcelain (or, especially in the kitchen, stainless steel), that is used for washing hands or small objects such as dishes, nylons, socks or underwear. Old sinks were often made of enameled steel or cast iron.
From a decorating point of view the bathroom presents a challenge. Ceiling, wall and floor materials and coverings should be impervious to water and readily and easily cleaned. The use of ceramic or glass, as well as smooth plastic materials, is common in bathrooms for their ease of cleaning. However, such surfaces are often cold to the touch and so water-resistant bath mats or even bathroom carpets may be used on the floor to make the room more comfortable.
Today there are a wide variety of sauna options. Heat sources include wood, electricity, gas and other more unconventional methods such as solar power. There are wet saunas, dry saunas, smoke saunas, steam saunas, and those that work with infrared waves as described above.
In addition to acting as a normal shower, a steam shower produces water vapor using a humidifying steam generator. These types of showers provide a pleasant bathing experience that is becoming more and more popular in many countries.
A sauna is a small room often part of a bathroom or adjacent to a bathroom designed as a place to experience dry or wet heat sessions.
Walk in Bathtubs with outward swing doors can be more compact (holding about the same volume of water as a regular bathtub) and allow for emergency access or exit. There is no fear of the door seal allowing water to leak in either inward or outward swing doors.