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Air Purifier

2018-09-03 Technology & Engineering
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Release : 2018-09-03
Genre : Technology & Engineering
Kind : eBook
Book Rating : 324/5 ( reviews)

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Book Synopsis Air Purifier by : Zhonglin Xu

Download or read book Air Purifier written by Zhonglin Xu. This book was released on 2018-09-03. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the development, types and application principles of portable air purifiers in China. It analyzes the theoretical characteristics of air purifiers under various operational conditions, and points out that the term “Clean Air Delivery Rate” cannot be used to precisely reflect the problems that occur under various operational conditions. By comparing theoretical and measured data, it highlights the mainfeatures of air purifiers and key points in the design process for different applications. Calculation methods for the indoor particle concentration and the self-purification time are also provided. The book describes the conditions for window opening in smog and for selecting air purifiers, and proposes a newmethod for improvingtheir measurement. In closing, it includes a new assessment index.

Popular Mechanics

2004-06
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Release : 2004-06
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Popular Mechanics by :

Download or read book Popular Mechanics written by . This book was released on 2004-06. Available in PDF, EPUB and Kindle. Book excerpt: Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.

Learning from SARS

2004-04-26 Medical
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Release : 2004-04-26
Genre : Medical
Kind : eBook
Book Rating : 158/5 ( reviews)

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Book Synopsis Learning from SARS by : Institute of Medicine

Download or read book Learning from SARS written by Institute of Medicine. This book was released on 2004-04-26. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of severe acute respiratory syndrome (SARS) in late 2002 and 2003 challenged the global public health community to confront a novel epidemic that spread rapidly from its origins in southern China until it had reached more than 25 other countries within a matter of months. In addition to the number of patients infected with the SARS virus, the disease had profound economic and political repercussions in many of the affected regions. Recent reports of isolated new SARS cases and a fear that the disease could reemerge and spread have put public health officials on high alert for any indications of possible new outbreaks. This report examines the response to SARS by public health systems in individual countries, the biology of the SARS coronavirus and related coronaviruses in animals, the economic and political fallout of the SARS epidemic, quarantine law and other public health measures that apply to combating infectious diseases, and the role of international organizations and scientific cooperation in halting the spread of SARS. The report provides an illuminating survey of findings from the epidemic, along with an assessment of what might be needed in order to contain any future outbreaks of SARS or other emerging infections.

Shopping for Air Purifiers

2014-12-10
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Release : 2014-12-10
Genre :
Kind : eBook
Book Rating : 208/5 ( reviews)

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Book Synopsis Shopping for Air Purifiers by : Alan Rushing

Download or read book Shopping for Air Purifiers written by Alan Rushing. This book was released on 2014-12-10. Available in PDF, EPUB and Kindle. Book excerpt: Air purifiers are electric machines that work to make indoor air cleaner and breathable. Air purifiers are great for those who smoke, have pets, young children, allergies or even those who just want to breathe clean air. For that reason, there is a good chance that you may be in the market for an air purifier. If so, where you do you plan on purchasing that air purifier from?

WHO Guidelines for Indoor Air Quality

2010 House & Home
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Release : 2010
Genre : House & Home
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis WHO Guidelines for Indoor Air Quality by :

Download or read book WHO Guidelines for Indoor Air Quality written by . This book was released on 2010. Available in PDF, EPUB and Kindle. Book excerpt: This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.

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