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Vacuum Cleaner Information
How Does a Vacuum Work? Buying a Vacuum Cleaner
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What Are Vacuum Cleaner Filters?Vacuum cleaner filters come in several forms: the most familiar is the vacuum cleaner bag; the more recent trend is the removable filter; and, a less-known option is the water filter. Originally, vacuums were sold with replaceable bags, and this is still an option. A bag filter simply traps dirt inside the bag while allowing air to flow through. The bags are removed and replaced when they become full. Water-filter vacuums were introduced about twenty years ago. Instead of a replaceable bag, the vacuum contains a water tank. Because water is heavier than air, as dirt and debris pass through the water chamber, they are trapped in the water. The water acts as a pressure agent to filter the dirt. Today’s bagless vacuum cleaners have removable plastic chambers where dust and debris are trapped. Within the chamber is a porous filter through which air passes and matter is collected. These filters have a HEPA rating. In the 1940’s, the US Atomic Energy Commission developed HEPA filters to filter radioactive dust particles in bomb shelters, protecting the participants in the Manhattan Project as they tested atomic bombs. After World War II ended, the government released the filters for commercial use and HEPA vacuum cleaner filters developed. A HEPA filter is tested and must meet certain criteria. They must be able to trap 99.97% of all particles with a size of .3 microns in order to receive a certifying serial number. A micron is one-millionth of a meter; .3 micron is approximately .0000133 inches. A .3 micron particle would have to be enlarged 150 times its size to be visible. The .3 micron standard is used because particles of this size are the most difficult to filter, and larger or smaller particles are filtered more efficiently. HEPA filters trap particles in three ways:
We use vacuum cleaner filters for a number of reasons:
Dust mites are a relative of the spider. They are microscopic parasites that primarily survive by eating dead skin cells shed by humans and their pets. They typically live in upholstered furniture, carpeting, and mattresses. Regular vacuuming removes the dust mites’ food supply. People who are allergic to dust mites can have a number of reactions, including allergic rhinitis, bronchial asthma, and eczema. Symptoms include sneezing, runny nose, itchy or watery eyes, stuffy nose, and ear congestion. Filters must be clean to function properly. Vacuum cleaners come with instructions on how to clean the filter. Typically, the plastic chamber is detached from the machine, the filter cartridge removed from the chamber, and the debris emptied into the trash. The filter itself is cleaned by brushing and/or hand-washing and drying, depending on the vacuum cleaner model. Filters should be cleaned after every 2 to 3 uses, and replaced every 6 to 12 months. Vacuum cleaner filters are necessary to ensure proper operation of a vacuum and to get the most efficient cleaning from it. When properly used and cared for, they help provide a clean home for many years. More Vacuum Products |
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