Tag - Olansi Air Purifier

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.”

For more info about the air purifier,you can pay a visit to olansi air purifier at https://www.olansi.net

Guangzhou Olansi air purifier manufacturer has been an OEM/ODM manufacture of air purifier

Guangzhou Olansi air purifier manufacturer has been an OEM/ODM manufacture of home air purifier and hepa air purifier in China since its foundation in 2009. As located in Panyu,Guangzhou, OLANSI has been supported by the local government with a series of favorable policy, such as tax-free for the import raw materials and one-stop service for export custom declaration.


Our products are of excellent quality and safety, which are guaranteed by international approvals, such as UL, RoHS, CE, GS, PSEM KSm, etc. International quality enables our products well sold in more than 30 countries over the world. We provide ourselves to be the first air purifiers and ion generator UL approved firm in China! (Approved by UL official website) ISO9001 system, certificated by the world famous strictest firm DNV, is strictly practiced in every process. Advanced management such as, PCM (provision chain management), CRM (customer relation management), CSM (customer satisfaction management), etc. are practiced to maintain efficiency and best service.

To keep pace with the ever-changing market demand of quality control, OLANSI adopts RoHs management system and applies RoHs certification for products. OLANSI also attaches great importance to Intellecture Property protection. At present more than 100 patents we own.

We range first for categories and sales volume of air purifier in China and keep innovative R&D to up with the international frontier. Supported by the strongest R&D team which is built up by the most competitive engineers from different technical fields of air purification, more than 20 updated new models are released annually, many of which are the best sellers in the international markets. OEM/ODM experience since our foundation, we are now cooperating with many big brands in many countries, many of which are the top 500 in the world. OLANSI operations extend throughout the world. It has clients in over thirty countries including USA, Germany, UK, France, Russia, Spain, Korea and Japan.


Olansi is a prime manufacturer and supplier of air purifiers and air cleaners

Olansi was founded in 2009 with the pious objective of providing an alternative to Chinese as well as citizens of other countries of breathing fresh air that was completely free from toxic pollutants.

More often than not, the air that people breathe inside their homes or offices or other indoor locations happens to be more polluted in comparison to the air circulating outdoors. Since the indoor living or working areas tend to be demarcated and enclosed and not unbounded as the outdoor zones, these interior premises tend to tend to trap high proportions of mites, pollens, spores, and other microscopic particles that cause a range of health problems the prominent ones being asthma and allergic disorders. In order to trap these unhealthy and invisible particles floating in the air inside homes or offices, a home air purifier comes in handy.

Olansi K15A3 Air Purifier

Olansi K15A3 Air Purifier

Guangzhou Olansi Air Purifier Manufacturing is a recognized Chinese concern that has been earnestly engaged in manufacturing a range of air purifiers since 3rd March 2009 in its air purifier factory located in GaoSha industrial zone in Guangzhou city.  The company’s wide range of products include air cleaners, air dust purifiers, air allergy purifiers, air purifiers (for asthma), air purifiers for children, air molds purifiers, air odors purifiers, air purifiers for pets, air PM (particulate matter) 2.5 purifiers, ionizer air purifiers, HEPA air purifiers, and so on. Since the establishment of its production unit, Olansi has been able to step up production without compromising on quality. Three years following its foundation, the company had been turning out 1, 20, 000 units of purifiers.

Olansi after entrenching its business within the country started exploring beyond the national borders. The ministry of foreign trade gave the consent to the manufacturer to export its wares to South Asia, North America, South America, Europe, Africa, and Southeast Asia. In order to gain the confidence of its overseas clientele, the company established a R&D center that concentrated on designing an innovative line of China air purifier. At the same time, Olansi also focused on coming up with world-class water purifiers. So as to bring about a greater consistency in the operational system comprising the different stages in the production process, the firm took the decision of creating a suite of ERP (enterprise resource planning) modules in 2014. The R& D center was further refurbished in 2015 with a view to enhance the efficiency of the entire product line.

The company’s 200 employees combined their efforts to produce 3,50,000 home air purifiers in 2015 and the firm is looking forward to transshipping over 5,00,000 units by the end of 2016. There are several practical reasons as to why customers have been steadfastly procuring air cleaners and air purifiers from Olansi on a recurring basis. Of these, the most significant has to be its capability to supply efficient products at immensely modest prices.

About Olansi

Olansi is a Chinese-based concern that has been producing and distributing a diverse range of air purifiers since the last 7 years. For more details, please visit their website. 

Media Contact
Company Name: GuangzhouOlansiAirpurifiermanufacturer
Contact Person: CarlosLee
Email: carlos@olansgz.com
Phone: 86-20-86000438
City: guangzhou
Country: China
Website: https://www.olansi.net