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Pros and Cons of HEPA Filter Air Purifiers, Dissected

April 1st, 2017|

A HEPA filter can be an important part of common air purifier systems promising to improve the air quality in your home or office. But there are a lot of misconceptions about the HEPA standard, whether or not an air purifier or filter truly meets the HEPA standard, and what a HEPA filter can and can’t do. Let’s take a look at what the HEPA standard means and how a HEPA filter can deal with various types of pollutants in your home. What is a HEPA filter? The HEPA standard is defined by the U.S. Department of Energy. It might seem strange that the Department of Energy created an air filtration standard, but HEPA was first developed in the 1940s for use in facilities containing nuclear materials. Shielding can be used to contain radiation, but if particles of dust and moisture become irradiated, they can spread radioactive contamination through air ducts and corridors. HEPA filters were developed to keep potentially radioactive particles contained. Since then, it’s been used in numerous industries and applications. By the 1960s, HEPA filters were moving into the consumer market as [...]

What you need to know about air pollutants

May 14th, 2016|

What you need to know about air pollutants The air we breathe is made up of 99% oxygen and nitrogen but also of natural and human-induced pollutants, that may have a short or long-term impact on our health. Get an insight into the main air pollutants! 1. Nitrogen dioxide (NO2) What is it? It is a suffocating and irritating gas that can be easily recognized thanks to its red-brown color. It also has a pungent odor. Where does it come from? Mainly from combustion (heating, electricity generation, vehicle and boats engines). 50% of NO2 emissions are due to traffic. What are the risks? NO2 is responsible for bronchitis and asthma, especially for children. A high concentration of NO2 may also contribute to the decrease of the lung function. 2. Particulate Matter What is it ? These are small solid particles that can penetrate in the airways and lungs. The finest ones can even bind to blood vessels. PM10 (PM standing for particulate matter) refers to particles smaller than 10 microns in diameter and PM2.5 for those smaller than 2.5 microns. Where do they come from? Human activities such as road traffic [...]

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