Author - Guangzhou Olansi Healthcare Co.,Ltd

Air Purifying “Towers” to Come to Beijing

World’s largest air purifier takes on China’s smog. The Smog Free Tower will arrive in China in September, starting with Beijing will create bubbles of clean air in inner-city parks and, Roosegaarde hopes, raise awareness of the dangers of air pollution.

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When artist Daan Roosegaarde visited Beijing in 2014, he was inspired by what he didn’t see.
From his hotel room on the 32nd floor, his view of the sprawling Chinese capital was totally obscured by smog.
“It was all gone,” Roosegaarde says. “The city was completely covered with smog.”
Two years later, he is taking the world’s largest air purifier on a tour of China.
The Smog Free Tower will create bubbles of clean air in inner-city parks and, Roosegaarde hopes, raise awareness of the dangers of air pollution.
Rabbits love clean air, too
The tower has just had a pilot run in Roosegaarde’s hometown of Rotterdam, where his company, Studio Roosegaarde, is headquartered.
It had a surprising effect on the local environment.
“For some reason, little rabbits find the space around the tower particularly intriguing. I don’t know why. Perhaps they can feel the difference,” he says.
Using ion technology, the tower attracts and captures the small pollution particles — PM2.5 and PM10 — and releases clean air, leaving the surrounding area with air that is about 75% cleaner, Roosegaarde says.
“Basically, it’s like when you have a plastic balloon, and you polish it with your hand, it becomes static, electrically charged, and it attracts your hair.”
The seven-meter high tower can clean around 30,000 cubic meters of air each hour, which Roosegaarde says is “a small neighborhood a day.” It runs on just 1,400 watts of power — no more than a tea kettle.
Could these towers save lives?
The tower will arrive in China in September, starting with Beijing.
The tour, a collaboration between Studio Roosegaarde and China’s Ministry of Environmental Protection, will decide its subsequent city stops in China based on the results of a public online vote.
After China, Roosegaarde plans to bring the tower around the world — Mexico City and India are destinations under consideration.
More than 80% of people in urban areas are exposed to air quality levels that exceed World Health Organization limits. As urban air quality declines, the risk of diseases such as strokes, heart disease, lung cancer, and asthma goes up.


Build Your Own Air Purifier

In the market for an air purifier? Well, given the winter we are about to close out here in China, you probably (hopefully) are. Would you buy a jacket that doesn’t keep you warm? I hope not, so don’t buy an air purifier that can’t provide you with clean air. The market for air purifiers is exploding and it’s easy to get lost. Stick with us, and we’ll set things straight.


Ok, I know how the logic goes: so a Blueair 403 will clean 66% as well as a blueair 603 in my living room, and 66% less on most days, is ok, right? Pollution is grimy, like dirty water, and needs to move to be cleaned. A purifier that is too small for a room might do next to nothing. On those bad pollution days, this can really put you at risk of discomfort or illness.

HEPA is a fabric-like material that is used in the construction of air filters. The design and production of the filter itself has a lot to do with its performance. Next time you buy an air purifier, make sure you get to take a look at it. Show you know your stuff by immediately popping the machine open and taking a good hard look at the filter, size, quality of construction, weight. Heavy is good.

You know what I love about buying a new air purifier? Hustling the sales reps for deals on extra filters. Remember, you’re not buying an air purifier to be trendy, you’re buying an air purifier because you want clean, fresh air. Once filters fill up and have been exposed to the world’s toughest pollution for months on end, they kind of, well, die. Buy a least a year’s worth right off the bat, so fresh air is never at the bottom of your to do list.

Home air purifier:Air Purifiers Help Lungs and Heart

Filtering fine-particle pollutants out of indoor air for just 2 days improved markers of cardiorespiratory health in study volunteers, according to a study from China.


In the randomized, crossover trial, the air purifiers, which were designed to filter out fine particulate matter pollutants (less than 2.5 µm in diameter). achieved and maintained 57% reductions of pollutants during the 48 hours (mean concentration 41.3 µg/m3), reported Renjie Chen, PhD, of Fudan University in Shanghai, and colleagues.

The authors also noted significant reductions in blood pressure and inflammatory biomarkers as well as nonsignificant increases in lung function.

“To the best of our knowledge, this is the first study to examine the impact of short-term purification of indoor air on clinical and biochemistry measures of cardiorespiratory health in areas with severe air pollution,” the group wrote in the Journal of the American College of Cardiology.

Shanghai is a city with severe air pollution. Daily outdoor air pollution levels in Shanghai during the study averaged 103 µg/m3, and indoor levels were about the same.

The study involved 35 healthy, nonsmoking college students living in 10 dorm rooms in the city. The rooms were randomized so that half received a functioning air purifier and the other half a sham purifier. The unit was placed in the center of the room and ran for 48 hours. Study volunteers stayed in the rooms with the doors and windows closed during this time.

The researchers evaluated health endpoints and drew blood for analysis after the 48-hour period. After a 2-week washout period, the process was repeated with the sham and functioning home air purifier units reversed.

The blood was analyzed for 14 biomarkers of inflammation, coagulation, and vasoconstriction. All circulating biomarkers decreased in response to the air purification intervention. However, decreases were statistically significant only for sCD40L, a marker of blood coagulation (64.9%, 95% CI 30.3%-82.3%), and for three inflammation markers:

  • MCP-1: 17.5% (95% CI 5.5%-30.8%)
  • Interleukin-1β: 68.1% (95% CI 44.3%-81.7%)
  • Myeloperoxidase: 32.8% (95% CI 5.3%-67.5%)

Systolic blood pressure decreased by 2.7% (95% CI 0.4%-5.1%) and diastolic by 4.8% (95% CI 1.2%-8.5%).

Fractional exhaled nitrous oxide, a marker of respiratory inflammation, decreased by 17% (95% CI 3.6%-32.5%).

The investigators reported modest, nonsignificant improvements in lung function, such as a 3.5% increase in forced expiratory volume in 1 second (95% CI -2.5% to 9.9%). They speculated that these improvements could have become significant if the study had continued longer.

“Although previous studies in countries with cleaner air (Denmark and Canada, etc.) have reported some health benefits due to air filtration, this study provided the first evidence in a country with severe air pollution problems,” Chen told MedPage Today via email.

“Our results showed clear benefits in a much wider range of cardiopulmonary outcomes,” Chen said. “Furthermore, our study found these benefits can be obtained even after a short-term (2-day) use of air purifiers.”

The study had some limitations, namely it was a small and short-term study done in healthy young adults, which may limit the generalizability of the results, and underestimate or miss other potential health effects, Chen explained.

“Bigger health benefits may be expected with long-term air purification and/or in more vulnerable populations (for example, cardiopulmonary patients),” Chen added.

In an accompanying editorial, Sanjay Rajagopalan, MD, of the University of Maryland in Baltimore , and Robert Brook, MD, of the University of Michigan in Ann Arbor, pointed out that “the evidence to date on the impact of improving indoor air quality has been mostly from the West using air purifiers to improve pollutants attributable to specific sources at relatively lower levels.”

“Added to the results from a few previous studies, these new findings bolster the evidence that improving indoor air filtration may be a practical ‘personalized’ method to reduce overall PM2.5 [fine-particle pollutant] exposure and mitigate adverse health effects,” Rajagopalan and Brook wrote.

“The observed improvement in outcomes, despite particulate levels remaining high during air filtration (41.3 µg/m3) supports the prevailing understanding of a log-linear dose-response relationship between exposure and health effects, whereby any lowering of pollution can translate into benefits, with larger absolute benefits the higher the level of air pollution,” they concluded.

But Darryl Zeldin, MD, scientific director at the National Institute of Environmental Health Sciences (NIEHS), offered some caveats about air purifiers.

Patients who ask about the benefits of air purifiers should be advised that they are only effective in small enclosed rooms, such as a bedroom, and they only remove fine particles such as cigarette smoke or combustion products, he told MedPage Today. “Air purifiers generally don’t work well for larger particles, which include common allergens such as dust mite particles, pollens, and mold because these particles rapidly settle and don’t become airborne again unless they’re disturbed.”

Air purifiers can be recommended in smokers’ homes to remove smoke particles from children’s bedrooms. They can also be recommended for homes with high levels of cat, dog, or mouse allergens, which are relatively small and stay airborne for longer periods of time, he said.

As for the study by Chen’s group, with which Zeldin was not involved, “it’s the first I’m aware of that shows air purifiers might have cardiovascular benefits,” he said. “It’s intriguing, but it’s more of a proof-of-principle study. You would need studies with similar methods in larger populations to bear this out.”

Companies Crowd Air Purifier Market as Airpocalypse Hits China

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At the beginning of Christopher Nolan’s new blockbuster Interstellar, the earth has become an inhabitable dust bowl with lung-choking air. The terrifying dystopia depicted in the movie may cause anxiety in Chinese people, because it’s very similar to what we are experiencing now.

The worsening air quality has sparked a surge in the sales of air purifiers as people desperately try to protect themselves from the smog. The air purifier market size is expected to jump from RMB12 billion (around US$1.93 billion) in 2013 to over RMB20 billion in 2014 and 75 billion in 2015, according to research institute AVC.

The booming market has attracted many companies. Another AVC report noted that the number of domestic air filter manufacturers has soared 450%, from 21 in Q1 2014 to 95 in Q3 in the same year.


DIY your own low cost air purifier

U.S. Eastern time at 3 pm, 7 high school students from the country to showcase the work of the 24 high school students innovation challenge.

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It is understood that the Harvard Youth Innovation Challenge is the Harvard China Education Forum for young people to build exhibition platform. From the organizing committee, the former Harvard Chinese Education Forum as educators China peak dialogue, and less related to the education of the students. This new challenge to attract students effectively to Harvard China education forum links to the Chinese to test the creativity of the young people and to the public affairs observation ability.

Beijing Royal School brought by “DIY your own low cost air purifier” display works won the first prize in the contest, get the education experts unanimously affirmed. The students from the city of the increasingly serious environmental pollution in the process of starting, the source of air pollution were analyzed, and jointly developed a reduce the cost of the air purifier, which is characterized by high efficiency, easy manufacture and low cost.

Home Air Purifier: How do Air Purifiers Work?

An air purifier is a product that cleans and rids the air of contaminants. Some claim removal of up to 99.9% of particles in the air of a home or business. They are commonly marketed for being beneficial to sufferers of asthma and allergies. Being able to reduce and even eliminate second-hand smoke is another attractive feature for many users.

Commercial grade purifiers are made as either small units that stand alone or larger units that are able to be attached to an AHU (air handler unit) or an HVAC unit that can be found in industrial, medical and commercial industries.

Home air purifiers can be used for an entire home or an individual room. Air purifiers are made in many different sizes and types with the most common being the HEPA filter. Most users of air purifiers purchase them to improve the air quality within their home or business.

Types of air purifiers

  1. HEPA Filters. The HEPA filter uses a cloth filter that is able to trap 99.9% of particles that are .3 microns or larger and a fan to circulate air throughout the machine. HEPA filters are effective in retrieving nearly any harmful particle that is found in the air. The replaceable filter can last many years depending on the air quality of the room the filter is in. A HEPA filter is a very effective unit but is one that uses a lot of energy
  2. Ozone purifiers. Ozone is a reactive oxidant that can destroy some chemicals and bacteria. When it reacts with some substances in the air, those substances are broken down into materials that are pollutants. An Ozone purifier fights those pollutants. It is also very effective in fighting odors but does not work against allergens or most chemicals.
  3. Carbon air purifiers. This type of air purifier is very effective in capturing particular particles, including gas, smoke, and odor. It is also the most absorbent filter sold on the market. A carbon air filter contains small pores that are very absorbent and chemically react to particles as they pass through and the odors and particles attach to the carbon. This particular air purifier does not work against allergens or micro-organisms.
  4. Ionic air purifiers. This type of purifier works by ‘ionizing’ air, causing particles to gain either a positive or negative charge. The ionic air purifier has a collection of plates that contain an opposite charge from the air particles; therefore, the particles are attracted to the plates. The charged particles will attract other particles with the opposite charge to them. An ionic air purifier is able to remove very fine particles in the air, even from several feet away, but it does not work on odors or kill germs.
  5. Ultraviolet light air purifiers. The Ultraviolet light air purifier sterilizes micro-organisms as they pass through, including viruses, germs, bacteria and mold. After they are treated with the ultraviolet light, the micro-organisms are no longer able to reproduce and grow. Ultraviolet light air purifiers do not work against smoke, odors, allergens or chemicals.

Choosing the right type of air purifier can be challenging, but by understanding their main differences, an educated choice can be made based on someone’s specific needs.

The following are features to consider when purchasing the proper unit:

  1. Performance. Look for a unit that removes a high amount of particles from the air, including smaller-sized pieces.
  2. Air volume capacity. Choose a unit that is recommend for your size room. This is usually expressed as square feet.
  3. Particular health concerns. Consider what substances you want to be removed from the air: smoke, germs, bacteria, etc.
  4. Manufacturer. Choose a purifier that has a reputable manufacturer. The Association of Home Appliance Manufacturers is a great source.
  5. Indoor factors. If there is a particular pollutant affecting your health, look for a unit that works best at eliminating it.
  6. Cost of operating. Replacement filters do cost so make sure to look at the replacement interval and the cost of filters.
  7. Quality of construction. Make sure the warranty covers the internal parts of the unit.
  8. Ease of use. Make sure the unit is easy to operate, clean and change the filter
  9. Noise while operating. Is the unit considered ‘whisper quiet’? You can request its operating noise values before you make a purchase. Quieter units are around 35 decibels.
  10. Warranty. Look for a long-term and comprehensive warranty

For an existing home and central air system, the easiest and most affordable method is an air purifier that is designed for only one room and used in that targeted room. A room air purifier works more efficiently and is more cost effective when a purifier is needed for only one room. An effective unit for a room can cost less than $300 and provides good results.

As an alternative, a whole house purifier can be purchased, but may cost thousands of dollars, depending on the installation and electrical needs of the unit.

Commercial air purifiers work by removing harmful contaminants that are circulating in the air. They are used worldwide to improve hygienic environments, remove odors, gases, smoke and other types of indoor air pollution. Commercial air purifiers are used today in schools, offices, hospitals, bars, restaurants, food plants, factories and farms.

How an Air Purifier Relieves Your Allergies

How an Air Purifier Relieves Your Allergies

Have you ever considered an air purifier for your allergies? Does your head feel like it’s in a vice grip, are your eyes are watering, is your nose running and your throat itching? Are you desperate to feel like yourself again? It may be time to consider an air purifier.


Why use an air purifier for allergies?

Using an air purifier offers long-term relief, one that can also lower the cost of managing your allergies. According to the Center for Disease Control and Prevention, 13.1 million doctor visits a year are due to allergies. Common triggers for allergies are dust, molds, pets, and seasonal triggers like pollen.

An allergy is simply your body’s overreaction to a foreign substance. An air purifier can greatly reduce the amount of allergens inside your home by tackling the problem at the source.


Air Purifier for Spring Allergies

With the peak of the spring allergy season fast approaching, millions of Americans are keeping their tissue boxes close by. The budding trees and blooming flowers associated with the early return of spring mark an increase in itchy, watery eyes, sneezing and other allergy symptoms.


Seasonal allergic rhinitis, or “hay fever,” affects more than 20 percent of the people living in the United States, according to the American Academy of Allergy, Asthma & Immunology (AAAAI). Allergies are triggered by substances called allergens, such as pollen or mold spores. Many trees, grasses and weeds contain small and light pollens that are easily carried by the wind, causing allergy symptoms to flare up in the spring.

Tips for allergy sufferers to find relief during allergy season

  • Do a thorough spring cleaning – windows, book shelves and air conditioning vents collect dust and mold throughout the winter that can provoke allergy symptoms.
  • Use a new filter in your air purifier. If you run your air purifier constantly, monitor your filter for build up. 
  • Shower and wash your hair before bed – pollen can collect on your hair and skin.
  • Keep pets off of furniture and out of the bedroom. Pollen can cling to the dog or cat after being outside.
  • Keep car windows closed during peak season. Use air conditioning and point vents away from face.
  • When mowing lawn or gardening, wear a filter mask.

Outdoor Air Purifier Makes Your Wait for the Bus 40% Less Smoggy

China’s campaign to wipe out air pollution reduced the levels of dangerous particulate matter in the air by 11 percent last year, according to the Ministry of Environment. But the country still has a long way to go before the air its citizens breathe every day can be considered healthy. Only eight out of the 74 cities surveyed met basic national air quality standards.


In the meantime, public awareness is rising. Pollution masks are hot commodities and startups making new models for indoor air purifiers are driving prices down. Now, a new invention currently being tested in Hong Kong claims it can reduce air pollution in an open outdoor space by an average of 40 percent (h/t to Techweb).

Under the prototype of the patent-pending system, air is drawn into the system from the inlet located at bottom. The air current then passes through a bag filter, which is effective in removing fine suspended particles (PM10 and PM2.5), before coming out through the Louvre overhead.

Hong Kong has been testing 2 meter-by-3 meter purification station on one of its busiest streets, queen’s Road East in Causeway Bay, since March. Sino Green tells Tech in Asia one unit costs HKD 600,000 (US$77,400 million). (Update: an earlier version of this story referenced the Techweb article that said the project cost US$10 million to develop. Sino Green has informed us that figure is not accurate.)

Air quality at the station can be monitored remotely. Further planned enhancements include smart controllers to manage operating hours more efficiently, solar panels for energy, and a mist cooling system for summer months.

Techweb says the City Air Purification System will be tested at Beijing’s Tsinghua University next. If all goes as expected, it could expand to other mainland cities in the future.

Home air purifier told you How Germs Can be Good for You

Chances are you have at least one or all of these products in your home. What better way to make sure you and your family stay healthy, avoid germs, and prevent illness?

But what if germs could actually prevent your children from getting sick or acquiring chronic problems including allergies and asthma?

Old Theory: Hygiene Hypothesis

Can You Be Too Clean?

While it might seem counter-intuitive, a number of studies have shown that early exposure to germs may lead to reduced allergies and asthma in children. A number of studies suggested this connection, including ones that found a lower rate of allergies among children growing up on farms, and lower rates of hay fever among children with larger families. Both these studies suggest that something about a less hygienic environment lead to a lower rate of allergies.

For many years, this hygiene hypothesis proposed that we were making our environments too clean. And it seems that as cleanliness and hyper-sanitation rose, so did the rate of allergies in the population. By some estimates, the prevalence of allergies, asthma, and respiratory infections in the population has more than tripled.

Germs and the Immune System

To understand how germs may prevent allergies and asthma, we need to understand what germs are and how immune systems are built. Germs are microscopic entities that cause disease and include bacteria and viruses. They enter the body through the nose, the mouth, or cuts, and find the optimal environment to start reproducing. Our immune systems keep germs in check and prevent them from taking over our bodies.

The immune system works by sending out scouts that recognize the germs, mark them, and then destroy them. In the process, your body may break out in a fever, create mucus, and cause you cough and sneeze in order to stop the infection, kill the germs, and clear your body. (Allergies occur when the immune system overreacts to non-harmful triggers such as pollen.)

After fighting off an infection, the immune system remembers the particular strain of bacteria or virus, which can help it respond even faster if the body is infected again. But infants cannot rely on their immune systems like we can.

When children are born, their immune systems are not fully formed. For the first few months of life, an infant will rely on his mothers to pass along antibodies through breast milk and give his immune system a helping hand. As he grows, exposure to germs helps his immune systems learn, adapt, and become stronger. Each infection means giving the system a new tool against future infections.  So being too clean is not a good thing.

New Theory: Old Friends Hypothesis

The old hygiene hypothesis suggested that we were making our environments too clean, and that our immune systems need to be stressed by disease. But it seems that this picture was too simple. A new study published just this month supports a different idea: the Old Friends hypothesis.

This hypothesis suggests that as humans evolved, the immune system grew dependent on exposure to common microbes (“old friends”) in order to grow. In contrast to dangerous microbes such as flu, polio, or smallpox, these helpful microbes taught the immune system how to function in order to eliminate harmful infections. But an immune system that doesn’t learn how to identify and fight infections is left unable to properly deal with allergens as well.

The study shows that it may not be clean environments that we have worry about, but our entire environment indoors and outdoors, which has slowly changed over the last few decades to be less conducive to beneficial microbes. Lifestyle changes—such as spending more time indoors—also limit our exposure to helpful bacteria outside while increasing our exposure to allergens inside, which accumulate in buildings due to well-sealed doors and windows.

How Germs Can be Good for You

how germs can be good for youSo what can you do to ensure your children grow up happy and healthy?

For one, let children play outside in green spaces that have limited exposure to pollutants. Don’t be afraid of dirt and germs, but continue to maintain sanitary habits that can reduce the spread of harmful diseases like influenza. Also, make sure to vaccinate your children against deadly diseases such as measles and polio.

And remember that when the immune system successfully fights off disease, especially in young children, it grows stronger!  Don’t focus on being too clean.

At Guangzhou Olansi, we’re well aware of the detrimental effects of air pollutants on our health, especially fine particulates.

In order to help curb those negative side effects of being exposed to unfit air quality, we’ve done extensive research on high-grade filtration and in turn, provide our buyers with the best air purifier filters in the world.

Our doctor-approved  Home Air Purifiers offer True HEPA filtration that removes 99.97% of the tiniest of particles from the air – limiting most harmful particles over 0.3 microns, while several competitors only remove less harmful particles.

If you live in areas with poor air quality levels or high frequencies of airborne allergens, consider a doctor-approved Olansi Air Purifier and limit the chances of stroke or other health issues for you and your family.