A bathroom is a room that may have different functions depending on the cultural context it is used in.
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.
Jacuzzi is a company producing whirlpool bathtubs and spas. Its first product was a bath with massaging jets. The trademarked Jacuzzi name is commonly misused to refer to any bath with water jets, and can thus be considered a genericized trademark. Sometimes spas and hot tubs are also mistakenly referred to as Jacuzzis.
Sinks generally have faucets, usually cold and hot, and a drain. When a sink becomes stopped-up or clogged, a person will often resort to use of chemical drain cleaner or a plunger.
Jacuzzis are commonly found in bathrooms in residential homes, hotels and aboard cruise ships and have become popular in high-end spas around the world. Jacuzzi products are distributed in about 60 countries.
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.
A bathtub (or simply bath) is a plumbing fixture used for bathing. Most modern bathtubs are made of acrylic or fiberglass, but alternatives are available in the form of porcelain-coated steel or wood. Older western bathtubs are usually made of galvanized steel or iron. Traditional Japanese bathtubs were usually of a wooden construction.
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.
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.
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.
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.
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.
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.
Electrical appliances, such as lights, heaters and heated towel rails generally need to be installed as fixtures, with permanent connections rather than plugs and sockets. This minimizes the risk of electric shock.
In the UK you can buy bathroom fixtures and accessories from Plumbworld, Cotswold Co and Roper Rhodes.