air purifier scientific

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Americans spend an estimated $250 million annually on air purifiers for their homes, with asthma and allergy sufferers responsible for most of the sales [source]. But scientific studies and testing reveal that many purifiers aren't effective at all, and some may be causing harm. The notion of purifying air has merit, however. The air inside the typical home is generally dirtier than the air outside, because a house can be a source of air contaminants. how ozone air purifiers workMoisture can lead to the development of mold and mold spores. indoor air quality and duct cleaningForced-air heating and cooling systems circulate dust particles and bacteria throughout the house. car headlight cleaning productsPets shed fur and give off dander, while smokers pump toxins into the air.
Pollen and other outdoor allergens can blow in through open doors and windows (or through a window or door screen) and become caught in carpet or upholstery. 10 Everyday Dangerous Things in Your Home How can ozone be both good and bad? The end result is that the average house tends to concentrate contaminants in greater quantities than the outdoors. This concentration isn't usually too harmful for a healthy person, but children and people with allergies and respiratory difficulties can experience ill effects. Reducing the level of contaminants can help alleviate some of these problems and using an air purifier is one way to do it. In the next section, we'll look at the five basic types of air purifiers available on the market today. When the Highest Air Quality is a Priority: ZAND-AIR™ Photo-Catalytic Air Purification Systems. The Zander Scientific, Inc. product line, ZAND-AIR™ air filtration and purification systems provide superior air filtration using photo-catalytic oxidation.
The purity of ambient air is a process that many industries throughout the world continue to focus on improving. Much of the research and development is centered on removing both dry and liquid particles. In the industrial sector continued improvements have been made to comply with EPA regulations, and reduce particulates to improve general working conditions. Clean Air to the Last Molecule !PR - UV Air Purifier BioZone Scientific’s PR is your solution for flexible chemical-free odor control and containment of infectious microorganisms, mold and other harmful impurities. PR can be mounted on the wall for a permanent room installation or used as a powerful portable device when and wherever you need it. PR has been demonstrated to reduce airborne bacteria in real world environments by over 70%. Kills germs by destroying bacteria both in the air and on surfaces throughout the area in which it is installed Removes odors at their source – does not simply mask odors
Low maintenance and low energy usage Portable or fixed installations Remote control and adjustable outputBiozone Scientific International Air Purifier in Malaysia shared BioZone Air Purifiers's post.BioZone Air PurifiersTuberculosis (TB) is an airborne disease caused by a bacterium, Mycobacterium and usually affects the lungs, but may also affect other parts of the body. TB can... be fatal. BioZone technology includes UV at 254nm wavelength used for 99.9% destruction of micro-organisms such as Mycobacterium, also commonly known as Pulmonary Tuberculosis. Although TB treatment is now readily available, proper awareness and care needs to be taken to prevent it. http://str.sg/ZDX4 National University Hospital recalls 178 children for TB testsThe National University Hospital (NUH) is recalling 178 paediatric patients - including 131 under the age of two years - who had been cared for by a nurse now confirmed to have tuberculosis.. The murky brown smoke that hangs over Beijing and other industrial cities has long presented a health challenge to China.
Unwilling to shut the factories and coal-burning plants that cause pollution, authorities instead are seeking novel solutions. Proposals have included seeding clouds to make rain to wash particulates out of the sky and equipping bicycles with pedal-powered generators that pump fresh air into riders’ helmets. The latest idea comes from Dutch artist Daan Roosegaarde, who hopes to create bubbles of clean air in various pockets around the Beijing. Roosegaarde’s positive–ionization “vacuum cleaner” uses high-voltage, low-amp electricity to create an electrostatic field. Particles flowing across the field—enclosed in a box—become positively charged and attach themselves to a grounded electrode, which need to be scraped clean periodically. (Roosegaarde plans to turn the stuff into “diamond” rings, with a cubic-centimeter stone representing a cubic kilometer of smog.) The system was actually invented by Delft University of Technology researcher Bob Ursem, who came up with the idea of ionizing smog particles after watching tiny bits of salt, dust and organic matter flow off the Atlantic Ocean onto a Dutch beach.
“They floated into the dunes toward some bushes,” Ursem says, “and there was a lift effect, carrying them above the bushes.” The particles, negatively charged from friction, were avoiding contact with negatively charged foliage. “They floated above the bushes, indicating that the electrical force is greater than the gravity force,” Ursem says. He replicated the phenomenon using dust in his lab, and he devised a way of reversing the charge on the particles using the electrostatic field. Under lab conditions, he says, his invention doesn't even require a ventilation system to draw air across the coils of electrified copper wire. The force of positively charged particles attaching themselves to a ground makes room for other particles to follow, soon creating an “ionic wind,” Ursem says. But in reality, the Beijing air cleaner would require fans, say officials the research and development firm Environmental Nano Solutions (ENS) Europe, which bought the concept from Delft University and is developing it for commercial marketing.
And it would not—as portrayed in Roosegaarde’s animated depiction of the device in action—produce an actual patch of blue sky above. Roosegaarde, who uses technology to make big artistic statements about the environment, came up with the idea of using it to tackle the smog problem in Beijing, and he pitched it to then-Mayor Guo Jinlong last year. After a March trade meeting with Xi Jinping, China’s president, and two subsequent meetings with Beijing authorities—who have budgeted $2.4 billion to address the smog problem in various ways—Roosegaarde and ENS have agreed to install one of their smog-busting machines in a municipal park there sometime in the next year. The outward appearance of the device is flexible, says Martin Pau, ENS’s business manager. Plans for the Beijing device center on a large octagonal structure eight meters tall with intake vents at the top and exhaust vents in the middle, out of which will flow smog-free air. The steel structure will weigh about nine metric tons.
To demonstrate the absence of smog in the freshair zone, lasers will shoot out beams, which will be invisible in a particle-free environment. ENS Europe’s smog buster will clean a dome-shaped area 30 meters in diameter to a height of about five meters. The whole thing, Pau says, will “resemble a medieval Chinese palace.” Demonstrations using prototype smog-collectors in a parking garage, a large pig barn and a highway tunnel have proved the machines’ ability to clear out up to 99 percent of particles as big as 15 micrometers and as small as 10 nanometers, Pau says. This range includes the particles—from 2.5 to 10 micrometers—that the World Health Organization deems as having the greatest potential for causing human health problems. The ENS technology may sound similar to home ionizing devices, such as Sharper Image’s Ionic Breeze, which are marketed as air-cleansing machines. The Ionic Breeze has been roundly criticized by Consumer Reports and others not only for its ineffectiveness but also for its tendency to emit ozone, which harms the lungs.