What are HEPA Air Filters?
The Environmental Protection Agency has determined that almost 90% of the people spend their time indoors.
This means that indoor air quality is much more important than outdoor air quality for most people.
HEPA (High Efficiency Particulate Air) filters are recommended by allergists and medical professionals for the removal of all dust particles in the size range of droplet nuclei from the air. The HEPA filter, a mechanical filter, was developed by the Atomic Energy Commission of U.S.A. during World War II to prevent radioactive particles from escaping from plants and laboratories.
Those initial HEPA air filters were very bulky compared to those that are produced today.
HEPA filters are able to trap 99.97% of particles having the size of 0.3 micron, including harmful fibers, dust, smoke, pet dander, and more.
With the capacity to collect dirt particles, which are 1/300th the width of the human air, these filters have high resistance power and cannot be placed directly in heating or cooling systems.
These filters are used as the primary filtration systems for electronic clean room assembly, isolation wards, surgical theaters, bioengineering units, pharmaceutical processing units, and other places where the maximum removal of sub-micron particulate is required. They are also used in portable units to supplement a building's ventilation system by providing disinfected air.
Doctors are advising the usage of HEPA filters in heating/cooling systems for the prevention and treatment of Tuberculosis. HEPA air cleaners, vacuum cleaners and air filters are essential by law to be used in all equipment for asbestos, lead, toxic chemicals, and mold abatement.
The major benefit of HEPA filters is that they can remove Volatile Organic Compounds (VOCs) which are the gases that are released from household chemicals and synthetic materials. If filtration systems do not contain HEPA filters, all the toxic particles trapped in the room are left unfiltered. The price of portable HEPA filter unit ranges from approximately $100 to $3500, depending on the size of the unit..
Home Air Cleaners Can Be A Very Important Part Of Our Everyday Life.
Home air cleaners are becoming a popular feature in many ordinary homes, but there was a time when, it seemed, we lived quite happily without them. The increasing amount of chemical and other pollutants in our atmosphere is making home air cleaners, such as electronic and Hepa air purifiers, ever more necessary, however, and while their protection was once only used in specialised circumstances, allergy relief air purifiers are becoming more and more a part of the ordinary household.
The technology behind modern home air cleaners and electronic air purifiers dates back to the nineteenth century, when two separate groups developed equipment loosely based on similar ideas for two distinctive purposes. The Dean brothers invented a purifier to protect fire fighters, while a man named Siebe developed equipment that would supply divers with a purified air supply.
Later scientists further developed these technologies, bringing us ever closer to the invention of the...
Vacuum cleaners > Home Air Cleaners Can Be A Very Important Part Of Our Everyday Life.
Re-Define What "Clean" Means for You and Your Home
There's an old saying - A person doesn't buy a drill because they want a drill. They buy the drill because they want a hole. The same is true for vacuum cleaners. A person only buys a vacuum cleaner because they want their home to be clean. They care about getting rid of dirt and airborne irritants - even if they're too small to be seen.
The measure of a vacuum cleaner is the quality of "clean" it delivers. Time to bring Old-fashioned Notions about Cleaning up to DateNot that long ago, most women still worked at home as full-time homemakers. Cleaning was hard work. Today's fast-paced reality is very different. Most people are not willing to work that hard on housework.
We have other priorities and demands on our time. Sure, we still want a clean home, but without such time-consuming drudgery. Our Expectations for Air Quality are Higher than they Used to beIt's not just the dirt you see that needs to be eliminated. Old-fashioned vacuums sucked up the dirt, but stirred it...
Re-Define What "Clean" Means for You and Your Home
Vacuum cleaners > Re-Define What "Clean" Means for You and Your Home
Time travel: sci-fi?
When you look at the clear night sky, you see stars-those tiny diamonds suspended in the vast pitch-black emptiness. But stars shine because?? Our own sun, which is a star, emits light. Stars are like giant bulbs but are much more powerful.Light travels at a speed of 3.0*108m/s in vacuum and space is mostly vacuum. In other words light can cover a mighty distance of 300 000 000m in only 1 second!The thing is that 300 000 000m is a just one of those small amounts in space. Other stars are billions of kilometres-let alone metres-away.
Astronomers in fact use light year as the unit for distance. One light year is the distance travelled by light (in vacuum) during one year. Therefore one light year equals (300 000 000*3600*24*365)m.A single light year is definitely huge: 9.46 trillion kilometres-no need to put this in digit form-in fact. But where exactly do I want to converge? A star that you see in the night sky is not one but many light years away. This means that it is very far...
Time travel: sci-fi?
Vacuum cleaners > Time travel: sci-fi?
Vacuums - How to Narrow Your Search
When it's time to buy a new vacuum, the sheer number of features and options available may overwhelm you. It is going to take some time to find the vacuum that's exactly what you need, but you can cut down the time involved if you take some simple steps before you ever start your shopping.
Start by establishing your budget. You can eliminate lots of vacuums simply by deciding the maximum amount you're willing to pay for a vacuum cleaner and then sticking with it. If you need to find something that you can finance, make that number one on your search criteria. This can also eliminate some vacuums from the realm of possibility.
Vacuums all have those heavy, unsightly bags that you have to replace, right? Actually, many of the top names today offer bagless vacuums.
Take time to do a bit of research first, but you may decide that you prefer one over the other. This can also give you some definite parameters to help narrow your search.
If...
Vacuum cleaners > Vacuums - How to Narrow Your Search
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