Do You Have Sick Building Syndrome? Join friendly people sharing true stories in the I Have Sick Building Syndrome group. Find support forums, advice and chat with groups who share this life experience. Sick Building Syndrome anonymous support group ...

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In the late 1970s, it was noted that nonspecific symptoms were reported by tenants in newly constructed homes, offices, and nurseries. In media it was called office illness. The term Sick Building Syndrome was coined by the WHO in 1986, when they also estimated that 10-30% of newly built office buildings in the West had indoor air problems. Early Danish and British studies reported symptoms.. Poor indoor environments attracted attention. The Swedish allergy study (SOU 1989:76) designated sick building as a cause of the allergy epidemic as was feared. In the 1990s, therefore, extensive research into sick building was carried out. Various physical and chemical factors in the buildings were examined on a broad front.. The problem was highlighted increasingly in media and was described as a ticking time bomb. Many studies were performed in individual buildings.. In the 1990s sick buildings were contrasted against healthy buildings. The chemical contents of building materials were ...

Natural ventilation and passive cooling is the harnessing of natural forces - heat generated buoyancy, wind pressures, thermal mass, phase change, adiabatic processes and so on, to provide comfort conditions within buildings without the use of mechanical processes, ie, from air conditioning systems, chillers or refrigeration processes. Although the principles of natural ventilation have been understood for many years and have become increasingly popular in recent times, there are many ways in which these systems may fail or not work to best advantage. This article sets out to explain some of the issues surrounding the use of natural ventilation and passive cooling.. ...

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Call to Comment on EU Cleanliness of Ventilation Systems Draft Standard. Draft European Standard prEN 15780: Ventilation for buildings - Ductwork - Cleanliness of ventilation systems is out for public comment. It has the potential to ensure clean, safe air conditioning systems throughout the European Union. - PR10090931

Sick building syndrome is a combination of ailments associated with an individuals place of work or residence. It is mostly related to poor indoor air quality.

Learn more about Improved Ventilation System for Removal of Airborne Contamination in Airborne Infectious Isolation Rooms at ashrae.org

A discussion of the Sick Building Syndrome was presented by Jan Stolwijk, (Epidemiologist) Yale University School of Medicine, and member, National Academy of Sciences Committee on Indoor Air Pollution and ASHRAE Standards Committee. He identified the sick building syndrome (a fictitious problem circulated by the tobacco industry) and addressed ventilation rates and the new ASHRAE standards. According to him, the new standard will outline procedures for greater accountability for-each phase of a buildings development. For example, an architects design assumptions are to be transferred to the building owner by means of a permanent document. Stolwijk mentioned that ASHRAEs committee included representatives from the Tobacco Institute and the Formaldehyde Institute to protect their interests. in the past, he said, ASHRAE was threatened with lawsuits by TI and the Formaldehyde Institute concerning the ventilation standard. The new ASHRAE standards, according to Stolwijk, will be 15 cfm/person ...

The idea that a building could make people ill has been in the public consciousness since 1976 when Legionella pneumophila first reared its ugly bacterial head at an American Legion convention in Philadelphia. While that was an unusual and isolated case, the idea of a buildings indoor air causing illness has never gone away.. During the eighties and nineties we embraced energy efficiencies with such vigor that in some cases our buildings became airtight breeding grounds for germs and toxins and building occupants experienced symptoms of acute discomfort.. In addition, according to the EPA, we here in North America spend as much as 90 percent of our time inside our buildings - our homes included - and these buildings are responsible for 38.9 percent of the US carbon dioxide emissions.. Although the actual figure is difficult to determine, the EPA has estimated the losses in employee absenteeism, medical costs, reduced productivity, and lower earnings due to sick building syndrome to be anywhere ...

The Office Illness Project in Northern Sweden was completed in 1994. It comprised a screening questionnaire study of 4943 office workers and a case-referent study of Sick Building Syndrome (SBS) in 464 subjects. Female gender, asthma/rhinitis, high psychosocial work load, paper and visual display terminal work have all been related in previously published results to an

Sick building syndrome (SBS) symptoms were investigated in a laboratory study of low humidity environments: 30 subjects were exposed to clean air at 22C with 5%, 15%, 25% and 35% RH and 30 were exposed to polluted air at 18C, 22C and 26C with a constant moisture content of 2.4 g/kg dry air and at 22C/35%RH. The subjects were exposed to each condition for 5 h and reported the intensity of SBS symptoms. Five hours of exposure to clean air at 5% RH caused only eye symptoms, while 5 h of exposure to polluted dry air at 15% RH aggravated a number of symptoms of the skin, nose, throat and lips. ...

Are there any occupants in your building that experience acute unexplained health conditions? Learn about sick building syndrome and find out what may be causing these unspecific illnesses

Sick building syndrome (SBS) is a set of symptoms you get while youre in a particular building. It usually happens in an office, but you can get it in any building.

Is everyone in your building getting sick all at once? Thats the result of sick building syndrome. Heres how to prevent it and keep your team healthy at work.

If you experience health problems in your home or workplace, and the symptoms have no apparent cause, you may be suffering from sick building syndrome.

|p>1.1  Scope.|br />|br />1.1.1  |br />This guide provides information to protect workers from confined space hazards.|br />|br />1.1.2  This  guide  supplements  existing confined space regulations, standards, and work practices by  providing  additional guidance  for  safe confined space entry  and  work.  References are  provided  throughout the  guide and annexes to  direct  the reader to other regulations and standards or other content that might be applicable.|br />|br />1.1.3|br />This guide provides information to identify, evaluate, assess, and then eliminate, mitigate, or control hazards that are present  or that may occur during  entry into or work  in  and around confined spaces.|br />|br />1.1.4|br />This  guide  provides  information  on  how  to  understand confined space safety and safeguard personnel from fire, explosion, and other health

No person may enter a permit required confined space without a confined space entry permit. Entry into non-permitted confined spaces can be made as long as the special procedures for entry into that space are followed. Contractors are responsible for their employees during work in confined spaces. This policy is meant to apply to all employees, contractors, inspectors, and all other persons entering an identified confined space at San Diego State University. Please contact EHS for further information. ...

Outdoor air enters and leaves a house by: infiltration, natural ventilation, and mechanical ventilation. In a process known as infiltration, outdoor air flows into the house through openings, joints, and cracks in walls, floors, and ceilings, and around windows and doors. In natural ventilation, air moves through opened windows and doors. Air movement associated with infiltration and natural ventilation is caused by air temperature differences between indoors and outdoors and by wind. Finally, there are a number of mechanical ventilation devices, from outdoor-vented fans that intermittently remove air from a single room, such as bathrooms and kitchen, to air handling systems that use fans and duct work to continuously remove indoor air and distribute filtered and conditioned outdoor air to strategic points throughout the house. The rate at which outdoor air replaces indoor air is described as the air exchange rate. When there is little infiltration, natural ventilation, or mechanical ...

This is an emerging illness, with complaints stemming from construction practices that began in the 1970s. Health complaints may be transient or become chronic, in some cases.. Sick building research shows that building-related symptoms are associated with building characteristics including dampness, cleanliness, and ventilation (NIOSH). Causes are frequently pinned down to flaws in the heating, ventilation, and air conditioning (HVAC) systems. Other causes have been attributed to contaminants produced by outgassing of some types of building materials, volatile organic compounds, molds (see mold health issues), improper exhaust ventilation of light industrial chemicals used within, location of fresh-air intake, or lack of adequate air filtration (see Minimum Efficiency Reporting Value).. Symptoms are often dealt with after-the-fact by boosting the overall turnover rate of fresh air exchange with outside air, but the new green building design goal should be to avoid most of the SBS problem ...

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An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and constructed of material which is custom-molded to the user. An external negative air supply is provided which connects to a tube extending from the appliance and draws air from the hollow appliance creating a partial vacuum in the users retroglossal area urging the users tongue and soft palate away from the users posterior pharyngeal wall and thereby opening an airway to the users nasal cavity. A sensor provides control information to the negative air supply by sensing relative pressure in the users oral cavity. The natural breathing cycle is thus facilitated but not controlled by the appliance.

An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and constructed of material which is custom-molded to the user. An external negative air supply is provided which connects to a tube extending from the appliance and draws air from the hollow appliance creating a partial vacuum in the users retroglossal area urging the users tongue and soft palate away from the users posterior pharyngeal wall and thereby opening an airway to the users nasal cavity. A sensor provides control information to the negative air supply by sensing relative pressure in the users oral cavity. The natural breathing cycle is thus facilitated but not controlled by the appliance.

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Choosing a fume hood is not an easy task. One way to make it easier is by narrowing down the choices by knowing what processes the fume hood will facilitate. It also helps to know how much room is available in the lab for the hood.. Knowing the types of chemicals being used can make selecting the proper hood a simple process. Meet with a sales representative from several manufacturers of fume hoods to get an exact chemical assessment done before viewing the selection of hoods compatible with various solvents, chemicals, and acids. Once the assessment has been completed, it makes choosing a ducted fume hood versus a ductless one a more obvious choice. These are the two basic types of fume hoods available.. In addition to choosing the hood to match the work being done in the lab, consider where to place the unit. It has to be placed away from doorways and air conditioners in order to safely remove toxins, dust and particulates from the air. Knowing where to position it helps narrow down the choice ...

Indoor Air Quality (IAQ) problems are not limited to just homes. In fact, many office buildings have a wider variety of air pollution sources, such as office equipment, printing/copying, and industrial chemicals. Some of these buildings may be inadequately ventilated or mechanical ventilation systems may not be designed or operated to provide adequate amounts of outdoor air. In addition, sometimes external sources of pollutants like wildfires are beyond our control and systems are not adequately designed to handle these extreme cases. Finally, people generally have less control over the indoor environment in their offices than they do in their homes. As a result, there has been an increase in the incidence of reported health problems due to poor indoor air quality, which impacts employee productivity.. Examples of office air pollutants include gases and particles produced by tobacco smoking, those released by molds and bacteria that grow indoors on damp surfaces, and the volatile organic ...

Indoor Air Quality (IAQ) problems are not limited to just homes. In fact, many office buildings have a wider variety of air pollution sources, such as office equipment, printing/copying, and industrial chemicals. Some of these buildings may be inadequately ventilated or mechanical ventilation systems may not be designed or operated to provide adequate amounts of outdoor air. In addition, sometimes external sources of pollutants like wildfires are beyond our control and systems are not adequately designed to handle these extreme cases. Finally, people generally have less control over the indoor environment in their offices than they do in their homes. As a result, there has been an increase in the incidence of reported health problems due to poor indoor air quality, which impacts employee productivity.. Examples of office air pollutants include gases and particles produced by tobacco smoking, those released by molds and bacteria that grow indoors on damp surfaces, and the volatile organic ...

Indoor Air Quality (IAQ) problems are not limited to just homes. In fact, many office buildings have a wider variety of air pollution sources, such as office equipment, printing/copying, and industrial chemicals. Some of these buildings may be inadequately ventilated or mechanical ventilation systems may not be designed or operated to provide adequate amounts of outdoor air. In addition, sometimes external sources of pollutants like wildfires are beyond our control and systems are not adequately designed to handle these extreme cases. Finally, people generally have less control over the indoor environment in their offices than they do in their homes. As a result, there has been an increase in the incidence of reported health problems due to poor indoor air quality, which impacts employee productivity.. Examples of office air pollutants include gases and particles produced by tobacco smoking, those released by molds and bacteria that grow indoors on damp surfaces, and the volatile organic ...

Indoor air quality assessments usually begin by conducting a visual inspection to identify areas/equipment that may be sources of pollutants, then determine their correlation with existing ventilation systems. Areas of potentially high pollutant concentrations are identified and air sampler units are installed. Air samples are analyzed for quantitative results of pollutant concentrations and evaluated to determine if there is a potential threat to health or the environment. Although Ontario does not have legislation that deals with indoor air quality, there are guidelines published by Health Canada, the Occupational Safety and Health Act(OSHA) and by the National Institute for Occupational Safety and Health (NIOSH). Comco Canada Inc. uses the standards published in these guidelines as well as best practices when conducting indoor air quality assessments.. ...

What causes Sick Building Syndrome?. Sick Building Syndrome is not an actual disease but rather a series of symptoms affecting people who spend long hours in closed spaces. The symptoms were first described in the United States around the mid-1970s, when major energy-saving measures led to the construction of air-tight office buildings made out of materials that used questionable chemicals and managed by centrally controlled HVAC systems Sick Building Syndrome is associated with the typical symptoms of acute intoxication caused by environmental pollutants.. Best practices: how important is temperature and humidity control in our homes?. Opening the windows even just for a few minutes every day will help keep homes healthy and prevent the build-up of mould and fungi. Installing a simple hygrometer in the home can also measure the moisture content in the home, for instance after cooking, bathing or hanging laundry to dry indoors. Its time to replace doors and windows when the hygrometer ...

When it comes to cleaning and restoration methods following a fire event, it is imperative that all HVAC and ventilation systems be addressed. In addition to heating and cooling systems, restorers must also pay special attention to other ventilation mechanisms, including those like exhaust ducts and filters in kitchens. Moreover, remediators must move and clean behind, around and under appliances, and must clean the exterior and interior of vent hood filters, mounting cavities and subsurface areas. Bathroom vents will also need to be addressed. Common HVAC heating and cooling systems come in various types. No matter the variety, these systems will need to be cleaned thoroughly following a fire, particularly if they were in operation during or immediately following the fire event. As far as ease of cleaning, there are certain HVAC systems that are easier to clean than others. Metal ducts, for example, are the easiest for remediators to restore. Vinyl ducts, on the other hand, are much more ...

Best DDEXSS T Inch Downdraft Ventilation System with Multiple Blower Options, 3 Speed Push Button Electronic Control, and Dishwasher Safe Mesh Filters: Stainless Steel

Greenheck Fan Corporation, a supplier of commercial and industrial ventilation systems, will invest $10.3 million to expand its manufacturing facility in Kings Mountain, North Carolina, according to the North Carolina governors office...

Modern exhaust systems contain not only a piping network to transport hot gas from the engine to the atmosphere, but also functional components such as the catalytic converter and turbocharger. The turbocharger is common place in the automotive industry due to their capability to increase the specific power output of reciprocating engines. As the exhaust system is a main heat source for the under body of the vehicle and the turbocharger is located within the engine bay, it is imperative that accurate surface temperatures are achieved. A study by K. Haehndel [1] implemented a 1D fluid stream as a replacement to solving 3D fluid dynamics of the internal exhaust flow. To incorporate the 3D effects of internal fluid flow, augmented Nusselt correlations were used to produce heat transfer coefficients. It was found that the developed correlations for the exhaust system did not adequately represent the heat transfer of the turbocharger. This paper addresses the fluid flow phenomena present in the ...

Handbook methods such as those presented in ASHRAEs Fundamentals Handbook or Bansal and Minkes Passive Building Design: A Handbook of Natural Climatic Control (ISBN: 044481745X) are very useful in calculating airflow from natural sources for very simple building geometries.. Computational Fluid Dynamics (CFD): In order to predict the details of natural airflow, numerical computational fluid mechanics models can be used. These computer simulations are detailed and labor intensive, but are justified where accurate understanding of airflow is important. They have been used to analyze new buildings including the atrium of a courthouse in Phoenix and the hangar of an air and space museum in the Washington, DC area.. An extensive list of journals, books, and other reference material regarding natural ventilation and other passive technologies is included in the Solstice Archive. For example:. DOE Building Energy Codes Program. EERE Fact Sheet: Cooling Your Home Naturally Software packages for ...

Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. IAQ can be affected by gases (including carbon monoxide, radon, volatile organic compounds), particulates, microbial contaminants (mold, bacteria), or any mass or energy stressor that can induce adverse health conditions. Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings. Residential units can further improve indoor air quality by routine cleaning of carpets and area rugs. Determination of IAQ involves the collection of air samples, monitoring human exposure to pollutants, collection of samples on building surfaces, and computer modelling of air flow inside buildings. IAQ is part of indoor environmental quality (IEQ), which includes IAQ as well as other physical and psychological aspects of life indoors (e.g., ...

The Integration of Engineering and Architecture: a Perspective on Natural Ventilation for the new San Francisco Federal Building ...

Think of it as instant smoke in a can. To members of the fire, safety and construction team in the science court atrium of the Mark O. Hatfield Clinical Research Center, it resembled a white river, a live rock concert, the genie coming out of the bottle. In reality it was artificial smoke pumped out of a theatrical fog machine for a test of the new hospitals smoke exhaust system. The test, conducted Sunday morning, August 15, was part of the CRC activation process. National Fire Protection Association standards require that multistory buildings with an atrium have a working smoke exhaust system. The test provided an operational check of the exhaust system, explained Bob Beller, a contractor representing the NIH fire marshal. It also allowed NIHs fire department to see where smoke may linger and where additional smoke ejection fans may be needed. The smoke filling the CRC air cavities was an artificial, nontoxic concoction of the kind used to dazzle audiences at operas, concerts and ...

Indoor air quality in schools may have an impact on students health and concentration, and activities for maintenance and improvement should be carried out on the basis of an objective evaluation of the indoor air quality. The purpose of this study is to suggest a method for setting the absolute and relative reference values for an indoor air quality index in the classrooms of the school. The pollutant concentration criteria in domestic and foreign codes, guidelines, certification systems, and indoor environment indexes were investigated and analyzed, and the absolute references with three levels were established for five pollutants including PM10, PM2.5, CO2, formaldehyde, and total airborne bacteria. The distribution characteristics of each pollutant were analyzed using the public data from the Ministry of Education, and peer groups for appropriate comparison were suggested for setting relative references. ...

eng] Ventilation systems are closely connected to indoor environment. In industrial spaces it has a major impact due to air quality and thermal comfort requirements, which leads into health and economy improvements. Confluent jets ventilation system has been assess in Söderhamn Eriksson, a machinery company located in Mariannelund, Sweden, since it has been proved as the best ventilation performance. Moreover this system is worthy for both heating and cooling purposes, although just heating case will be developed in this thesis. By means of modelling software such as Gambit and Airpak, the company¿s case could have been analyzed via Computational Fluid Dynamics (CFD) software, i.e. Fluent. The analyzed models were accepted after a thorough study of meshing parameters, bearing in mind computational limitations. Every temperature data gathered from simulation results has been verified with infrared camera figures taken at the company, thus contributing to reach reliable conclusions. As it is ...

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Tripod Height 7 ft., Tripod Material Aluminum, Base Radius Range 63 In., Winch Cable Length 60 ft., Winch Cable Dia. 1/4 In., Winch Cable Tensile Strength 7000 lb., Winch Max. Working Load 350 lb., Winch Cable Material Galvanized Steel, Includes 7 ft. Tripod, 60 ft. Salalift(R) II Winch 5MNY6, and Winch Bag Make raising, lowering, and supporting workers an easier task during rescue with confined space rescue equipment from Grainger. With a tripod style that features adjustable legs, rubber skid pads and serrated edges to prevent slipping, you can increase safety during rescues. Conduct retrieval and rescue in confined spaces with confined space rescue equipment available at Grainger.

If youre working in a confined space with risk, you will need a confined space rescue team! BCJ are the UKs number one confined space rescue team.

Heat recovery ventilation systems not only extract the stale indoor air and replace it with fresh air, but also by passing the supply air close to the exhaust air it is possible to warm the incoming air. This means that during the cold winter days, heat is not lost from the building through your commercial ventilation system. By combining this type of commercial ventilation with an air conditioning system, one can control the other. Because Microfix Services is a specialist in both we can design the system to maximise this ...

article{2141670, author = {Laverge, Jelle and Janssens, Arnold}, issn = {0378-7788}, journal = {ENERGY AND BUILDINGS}, keywords = {CHINA,RATES,OFFICE,BUILDINGS,PERFORMANCE,TEMPERATURE,AIR,Ventilation,Exergy,Primary energy,Heat recovery,Carbon dioxide emission,Operating energy cost,Degree days,Climate}, language = {eng}, pages = {315--323}, title = {Heat recovery ventilation operation traded off against natural and simple exhaust ventilation in Europe by primary energy factor, carbon dioxide emission, household consumer price and exergy}, url = {http://dx.doi.org/10.1016/j.enbuild.2012.04.005}, volume = {50}, year = {2012 ...

By Nate Adams. Weve all seen the studies: Our Indoor Air Quality is terrible! Its KILLING MILLIONS!!. The problem with these studies is that if youre like me you thought; great, another scare tactic. Or its really only a problem in Asia. Or of course, Indoor Air Quality (IAQ) may be a problem in someone elses house, but not mine. Even if youve read that poor IAQ is being found to be a cause of childhood asthma and mental illness, or that air pollution is the single largest environmental health risk according to the World Health Organization, it still feels too remote to worry about it.. To further enforce the disconnect, short of a government study, there has been no clear way for the average person could gain even the vaguest insight into their indoor air quality (but heres a hint, if you use air fresheners, you have an IAQ problem.). Well, thats all changed, no more guessing. Average Joes like you and me can now get a pretty good picture of how good or bad the air in our homes ...

TY - JOUR. T1 - Measurements of Hybrid Ventilation Performance in an Office Building. AU - Brohus, Henrik. AU - Frier, Christian. AU - Hendriksen, O.J.. AU - Heiselberg, Per Kvols. N1 - HybVent - Hybrid Ventilation Special Edition HybVent - Hybrid Ventilation Special Edition. PY - 2003. Y1 - 2003. KW - Hybrid ventilation. KW - Office building. KW - Measurements. KW - Tracer gas. KW - Performance. KW - Hybrid ventilation. KW - Office building. KW - Measurements. KW - Tracer gas. KW - Performance. M3 - Journal article. VL - 1. SP - 77. EP - 88. JO - International Journal of Ventilation. JF - International Journal of Ventilation. SN - 1473-3315. ER - ...

Health complaints among employees of a 22 story municipal office building were investigated by NIOSH. A self administered questionnaire was distributed to all 438 employees on floors 15 through 22 of the office building requesting information on demographic characteristics, health history, health symptoms, and comfort concerns. Elevated carbon-dioxide (124389) levels were found in two locations, l

The term heat recovery (WRG for short) stands for different methods for the utilization of the thermal energy. This waste heat is not only produced as exhaust air in air conditioning systems and refrigerators. On a large scale, heat recovery also works from exhaust air in various industrial processes. For builders and homeowners who are planning to build a new building or renovate an old building, a ventilation system with a heat recovery system is recommended. The high efficiency of more than 90% brings considerable savings. At the same time, the reduction of energy costs is the top goal of every measure for heat recovery. However, the lower use of primary energy also meets ecological requirements, such as the reduction of CO2 emissions. In addition to energy saving, the protection of the living space, the ventilation without external noise, protected rooms for pollen allergists as well as harmless and comfortable room air conditions are the advantages of a living room ventilation unit. ...

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