Post written by Dr Chris Ecob, Global Business Manager for Molecular Filtration, Camfil Group:
The leading organisation responsible for cataloguing chemicals – the CAS Registry (Chemical Abstract Service) – has more than 73 million unique chemicals in their database and is adding new items at the rate of 15,000 every day. Many of these chemicals never pre-existed in nature and have been created by man in the industrial era. Some chemicals only exist as gases in the air.
However, all chemicals, including those that are normally liquids or solids, have to varying degrees the ability to evaporate and become airborne in their molecular form. It is an inescapable fact therefore that all around the globe, there are more chemicals in the air than ever before.
Categorising molecules by impact
Airborne molecules may be categorised according to their impact on humans and our world. Responsibility for smell or odour is perhaps the most obvious.
The receptor cells in the nose and the human brain are capable of detecting and characterising many different odour types. Some molecules are classified as irritants. In addition to creating an odour response, they stimulate an involuntary and negative reaction from the body. The classic example is activation of the tear ducts when chopping onions. Continue reading →
The International Agency for Research on Cancer (IARC) – a specialised agency of the World Health Organization (WHO) – has announced there is convincing evidence that exposure to outdoor air pollution causes lung cancer.
IARC has also classified a major component of outdoor air pollution – particulate matter (PM) – as carcinogenic. Although both the composition and levels of air pollution can vary dramatically from one location to the next, the cancer agency says that its conclusions apply to all regions of the world.
In a statement, Magnus Yngen, President and CEO of the Camfil Group, made the following comment about IARC’s conclusion:
“It is now officially recognized that outdoor air pollution contains cancer-causing substances, which sends a clear signal to policymakers around the world to improve the quality of the air we breathe in cities where severe air pollution impacts human health and life negatively. However, improving indoor air quality is just as important. To protect occupants in polluted cities, a three-pronged strategy is needed for urban buildings: effective particle and molecular gas filters in air handling units, elimination or control of indoor pollution and, when necessary, supplementary air cleaning with standalone filtration units to deal with special air-quality problems at the source. Without a comprehensive filtration approach, unclean outdoor air supplied through ventilation systems can mix with indoor sources and become up to 50 times more polluted.” Continue reading →
Whatever your needs, there is an Absolute filter for you. Of course, each and every filter offers first-rate quality and top performance.
Is price most important? Or is it essential that the filter can handle a high airflow? Or that it has a specific structure or design? Maybe you’re looking for a filter that has a low pressure drop, so that it “consumes” less energy?
From a sustainability point of view, all Absolute filters are an excellent choice. They have all been developed to be energy efficient and to last for a long time. And when it is finally time to change the filter, it is fully recyclable (it can be either crushed or burnt). Absolute filters are available with wood, plastic or metal frames.
Absolute C “One of the first Absolute”
For airflows up to 2100 m3/h
Best in class in terms of cost efficiency
For your basic needs
Flexible sizing options
Controlled Media Space (CMS) – for optimal airflow and best media exposure
Seamless gasket eliminates the risk for air bypass
Dowel construction, assembled without any screws
“The green scannable standard”
The Camfil Absolute D-G provides high-efficiency particulate air (HEPA) filtration for critical application processes. Its critical media mass, is more than twice that of standard HEPA filters, which ensures low resistance to airflow for optimal energy savings throughout the life of the filter and increased air changes for air-starved applications.
The Camfil Absolute VG provides high-efficiency particulate air (HEPA) filtration for critical application processes. Its critical media mass, is more than twice that of standard HEPA filters, which ensures low resistance to airflow for optimal energy savings throughout the life of the filter and increased air changes for air-starved applications. Continue reading →