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Reed Diffuser
Aroma lamps, or diffusers, are used to diffuse essential oils. They may project the oil into the air by heating it, letting it evaporate naturally, or nebulizing it using compressed air or ultrasonics. Evaporative diffuser An evaporative diffuser is a device that uses a pad, filter, or reeds to diffuse the essential oils. One of the disadvantages of this tool is that the light elements of the essential oils will be circulated around the ceiling first and will only come down at the end of the process. Heat diffuser A heat diffuser contains a small candle under a bowl to vaporize a mixture of water and oil. This device is very cheap and doesn't need a special maintenance, however, the heat can change the chemical structure of the oils. Certain plug-in nightlight units made by companies such as Air Wick are used in combination with glass bulbs of scented oil, filling a room with fragrance and light. Nebulizer A nebulizer is a device that does not use water or heat as other di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Essential Oils
An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the oil of the plant from which they were extracted, such as oil of clove. An essential oil is essential in the sense that it contains the essence of the plant's fragrance—the characteristic fragrance of the plant from which it is derived. The term "essential" used here does ''not'' mean required or usable by the human body, as with the terms essential amino acid or essential fatty acid, which are so called because they are nutritionally required by a living organism. Essential oils are generally extracted by distillation, often by using steam. Other processes include expression, solvent extraction, '' sfumatura'', absolute oil extraction, resin tapping, wax embedding, and cold pressing. They are used in perfumes, cosmetics, soaps, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Nebulizer
In medicine, a nebulizer (American English) or nebuliser (English language, English) is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs. Nebulizers are commonly used for the treatment of asthma, cystic fibrosis, COPD and other respiratory diseases or disorders. They use oxygen, compressed air or ultrasonics, ultrasonic power to break up solutions and suspensions into small aerosol droplets that are inhaled from the mouthpiece of the device. An aerosol is a mixture of gas and solid or liquid particles. Medical uses Guidelines Various asthma guidelines, such as the Global Initiative for Asthma Guidelines [GINA], the British Guidelines on the management of Asthma, The Canadian Pediatric Asthma Consensus Guidelines, and United States Guidelines for Diagnosis and Treatment of Asthma each recommend metered dose inhalers in place of nebulizer-delivered therapies. The European Respiratory Society acknowledge that although nebulizers are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Reed (plant)
Reed is a common name for several tall, grass-like plants of wetlands. Varieties They are all members of the order Poales (in the modern, expanded circumscription), and include: In the grass family, Poaceae * Common reed ('' Phragmites australis''), the original species named reed * Giant reed ('' Arundo donax''), used for making reeds for musical instruments * Burma reed ('' Neyraudia reynaudiana'') * Reed canary-grass ('' Phalaris arundinacea'') * Reed sweet-grass ('' Glyceria maxima'') * Small-reed ('' Calamagrostis'' species) In the sedge family, Cyperaceae * Paper reed or papyrus (''Cyperus papyrus''), the source of the Ancient Egyptian writing material, also used for making boats In the family Typhaceae * Bur-reed ('' Sparganium'' species) * Reed-mace (''Typha'' species), also called bulrush or cattail In the family Restionaceae * Cape thatching reed ('' Elegia tectorum''), a restio originating from the South-western Cape, South Africa. * Thatching reed ('' Thamno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Nightlight
A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or during an emergency. Small long-burning candles serving a similar function are referred to as " tealights". Uses and cultures People usually use nightlights for the sense of security which having a light on provides, or to relieve fear of the dark, especially in young children. Nightlights are also useful to the general public by revealing the general layout of a room without requiring a major light to be switched on, for avoiding tripping over stairs, obstacles, or pets, or to mark an emergency exit. Exit signs often use tritium radioluminescence. Homeowners usually place nightlights in bathrooms, kitchens and hallways to avoid turning on the main light fixture, especially late at night, and causing their eyes to adjust to the brighter light. Some frequent travelers carry small nightlights for temporar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Air Wick
Air Wick is an American brand of air freshener owned by the British multinational company Reckitt. It was launched by creator Guy Paschal in 1943 in the United States, and is now sold worldwide. History Air Wick was introduced in 1943 in the United States. In 1973, it had sales of $33.5 million and earnings of $2.7 million, prompting the Swiss pharmaceutical company Ciba-Geigy (now Novartis) to investigate purchasing them. Ciba-Geigy took brief control of the company in 1974 before selling it to British household products company Reckitt & Colman (now Reckitt Benckiser) in December 1984. The sale was partly motivated by what Ciba-Geigy's top management saw as a product that was at odds with their corporate culture; their rationale was that as a chemical business, they should not be involved with consumer products. In October 2007, Reckitt Benckiser won a High Court ruling in a lawsuit with Procter & Gamble over claims that the design of Air Wick Odour Stop was an exact copy of P&G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Humidifier
A humidifier is a household appliance or device designed to increase the moisture level in the air within a room or an enclosed space. It achieves this by emitting water droplets or steam into the surrounding air, thereby raising the humidity. In the home, point-of-use humidifiers are commonly used to humidify a single room, while whole-house or furnace humidifiers, which connect to a home's HVAC system, provide humidity to the entire house. Medical ventilators often include humidifiers for increased patient comfort. Large humidifiers are used in commercial, institutional, or industrial contexts, often as part of a larger HVAC system. Overview Humidification calculation : Humidity per hour: X = '' Air changes per hour (ACPH) * M³ * density of air * humidity ratio'' :: Humidity per day: X * 24 * The air changes per hour (ACPH) ranges wildly based on: ** Ventilation: Values may be obtained from the HVAC maintainer that routinely (typically every third year or so) tests the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Ultrasonic Transducer
Ultrasonic transducers and ultrasonic sensors are devices that generate or sense ultrasound energy. They can be divided into three broad categories: transmitters, receivers and transceivers. Transmitters convert signal (electrical engineering), electrical signals into ultrasound, receivers convert ultrasound into electrical signals, and transceivers can both transmit and receive ultrasound. Applications and performance Ultrasound can be used for measuring wind speed and direction (anemometer), tank or channel fluid level, and speed through air or water. For measuring speed or direction, a device uses multiple detectors and calculates the speed from the relative distances to particulates in the air or water. To measure tank or channel liquid level, and also sea level (tide gauge), the sensor measures the distance (ranging) to the surface of the fluid. Further applications include: humidifiers, sonar, medical ultrasonography, burglar alarms and non-destructive testing. Systems typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Cavitation
Cavitation in fluid mechanics and engineering normally is the phenomenon in which the static pressure of a liquid reduces to below the liquid's vapor pressure, leading to the formation of small vapor-filled cavities in the liquid. When subjected to higher pressure, these cavities, called "bubbles" or "voids", collapse and can generate shock waves that may damage machinery. These shock waves are strong when they are very close to the imploded bubble, but rapidly weaken as they propagate away from the implosion. Cavitation is a significant cause of wear in some engineering contexts. Collapsing voids that implode near to a metal surface cause cyclic stress through repeated implosion. This results in surface fatigue of the metal, causing a type of wear also called "cavitation". The most common examples of this kind of wear are to pump impellers, and bends where a sudden change in the direction of liquid occurs. Cavitation is usually divided into two classes of behavior. ''In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |