How to choose your air purifier |
Posted: March 12, 2019 |
In homes and business premises, poor air quality has a direct impact on the health of the occupants. Exposure to pollutants, fine particles and pathogens can lead to serious diseases. Follow our tips for choosing the right air purifier for your situation. How does an air purifier A turbine propels air through filters that target certain pathogenic species through physical or chemical processes, by capture or transformation. The pre-filter, upstream of all the others, captures hairs and other volatile wastes that can hinder the proper functioning of the system. Then, discharged solids, the air circulates in a series of different filters composing the purifier. It is this combination of filters that defines the purification quality of the device, which can be used to deal with particles of at least 0.3 μm (micrometers), bacteria and viruses, volatile organic compounds. The filters making up the air purifiers can be particulate, ionization, combustion, photocatalytic or plasma. Each filter corresponds to a use, a precise filtration to conjugate with the exposure to the pollutant. Why purify the air in the habitat The air of our habitats can be polluted by many sources: the paint that covers the walls; the furniture decorating the living room; the road traffic if you live in the city or the factory of the corner or the sofa simili. A purifier therefore cleans the air of the room where it is located and reduce our exposure to pollutants that sometimes prove to be carcinogenic. Air purifier: which filter for which use The filters that you may encounter on a consumer air purifier are a combination of different possibilities. Particle filter Characterized by the minimum size of the particles that it can capture, expressed in micrometer (μm) or millionth of a meter. Require a HEPA filter, for High Efficiency Particulate Air. These filters are capable of filtering 99.97% of particles with a diameter greater than or equal to 0.3 μm. These fine particles are combustion ashes, pollen, dust produced by tires and brake pads. They are responsible for respiratory diseases such as asthma. You will understand that it is essential to have a filter of good quality, especially if you are allergic to pollen, asthmatic or if you live near a major road. Ionization filter Ionization is the process by which we add or remove electrons from the atoms of molecules to modify their physical properties. This filter removes electrons from particles and pollutants in the air. Become neutral, they are less aggressive. Charged negatively, they are then attracted to positively charge electrostatic surfaces, much like the north and south poles of magnets that can attract each other. Combustion filter Bacteria, fungi and particles are burned in contact with a surface raised to 200 ° C . The air is of course cooled at the output so as not to harm the comfort. Photocatalyst filter The air circulates in nanotubes covered with an oxide or a sulphide. Titanium dioxide is often found to accelerate the oxidation reaction of certain pollutants by ultraviolet (UV) rays. Out of it comes water, carbon dioxide (CO2) and healthier air. Plasma filter When ionized air contains as many free electrons as there are neutral atoms, we speak of plasma. A large amount of energy is used to excite the oxygen molecules that are sent into the room air. They will then oxidize the various pollutants and destroy them. The aggressive nature of this filter is intended for industrial use only, and to prohibit it for commercial or residential use.
|
|||||||||||||||||||||||||||||||||||||||||||
|