| HEPA stands for high efficiency particulate air and | | | | them down, making them stick to the filter and |
| HEPA air filters are used in a wide range of | | | | not pass through it. |
| different appliances and devices in and around the | | | | Together this mixture of methods means that |
| home and office to reduce the number of | | | | the majority of particles from 0.1 micrometers |
| pollutants in the air. Experts say that a HEPA filter | | | | upwards will adhere to the filter and be taken out |
| will eliminate up to 99.97% of particles that are | | | | of the air. HEPA filters can be used in different |
| airborne and are 0.3 micrometers in diameter. This | | | | ways such as in generating nuclear power (they |
| size of particle is thought to be the most difficult | | | | are used in the housing filters to eliminate |
| to filter and are known as the most penetrating | | | | contaminants from getting in to the air), air |
| particle size or MPPS. Any particles that are either | | | | conditioning units (which when used to eliminate |
| bigger or smaller than this size are filtered with a | | | | airborne bacterial can be up to 99.995% |
| better efficiency. | | | | effective) and vacuum cleaners (to rid the air of |
| A HEPA filter is made up of a mat of fibers that | | | | dust mites, pet dander and other irritants). |
| are randomly distributed across each other | | | | Using a HEPA filter can drastically cut down on the |
| forming a mesh of different sized fibers all placed | | | | amount of pollutants that are in the air and today |
| on top of each other many times to form a filter. | | | | their use is not just limited to commercial |
| Air that passes though the mat is filtered as | | | | ventures. You can easily have HEPA filters put |
| particles are trapped within it and the filter, after | | | | into your air conditioning or ventilation systems |
| a certain period of time can be changed and all | | | | both in residential and commercial properties. And |
| trapped particles are disposed of. A HEPA filter | | | | using a vacuum cleaner with a removable HEPA |
| targets small particles and sticks them to fibers | | | | filter can vastly improve the air quality in the |
| by one of three methods: | | | | home and can make all the difference if you |
| -Impaction: This works by the larger particles | | | | suffer from allergies. |
| being unable to pass through or swerve past | | | | To make sure that you have HEPA filtration |
| fibers even when using air stream contours. The | | | | working for you make sure that you change your |
| higher the air flow and lower the fiber separation | | | | filter at the recommended time and only use filter |
| the more particles will stick to the filter. | | | | appliances that can use a HEPA filter. If you would |
| -Interception: This happens when particles are | | | | like more information on installing HEPA filters into |
| airborne and follow the stream of air and stick to | | | | your air conditioner or ventilation system speak to |
| a fiber when they come into close contact with it. | | | | your local HVAC professional who can assist you |
| -Diffusion: This works by the smallest particles | | | | with all your filtering and air conditioning needs. |
| colliding with gas molecules, which in turn will slow | | | | |