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Learn about high energy particulate air (HEPA) filters and their air filtering specifications. Read about the development of HEPA filter technologies.
... HEPA Filters Share HEPA Filter History and Specifications HEPA stands for High Efficiency Particulate Air (filter). HEPA was a top-secret technology developed during the 1940s by ...
This site reviews the history of electric light bulbs and describes the various light bulb and lighting technologies available today.
... the light, hence the name "fluorescent" bulb. These bulbs are energy efficient and cool to the touch, making them the ideal choice for large spaces ...
Learn about built-in gas fireplaces that are fueled by natural gas or propane gas.
... fireplaces, they are also easy to turn on and off and are more energy efficient. You don't need to store wood for a gas fireplace or clean ashes ...
Learn the pros and cons of tankless and tank-type hot water heaters. Compare a wide range of tank-type water heaters and tankless water heaters from several...
... commercial water heaters are fueled by electricity or gas. Electric water heaters operate more efficiently, but gas water heaters often cost less to operate because natural gas is ...
Learn about window air conditioners and portable air conditioners. Compare room air conditioners offered by selected home appliance manufacturers.
... cool a 600 to 900 square foot room. Air conditioners with a high Energy Efficiency Rating (EER) and frequently cleaned filters will operate more efficiently. Room ...
Learn about clothes washer features and styles. Compare and shop for clothes washing machines and dryers. Find washing machine manufacturers and consumer in...
... a hand-operated stick inside a box. These machines were certainly not the easy and efficient machines we use today. And you can imagine that a task we hardly ...
Introduction to pay per click search engines and website advertising and promotion tools.
... lists of popular search engine, keyword, and bid management tools for quickly and efficiently building your web site traffic. The search engine review matrix details performance and ...
Overview of environmental careers and occupations in the USA, including a discussion of environmental institutions and their role in society. Links to envir...
... greater levels of pollution. Environmental workers face the task of finding alternative means of efficient resource creation and consumption, as well as mitigating the effects of pollution and ...
Learn about the characteristics and benefits of modular homes, including a discussion of modular home construction methods.
... very streamlined. The resulting product is more consistent, and it is made more efficiently with specialized equipment. Today's modular home is of excellent quality, is faster ...
Learn about elliptical training machines. Compare the pros and cons of ellipticals with respect to treadmills, stair steppers and exercise bikes.
... exercises like running, aerobics, and hiking can build bone density and burn calories efficiently. For people who are trying to burn calories, lose weight, and ...
Learn about the mailing labels and shipping labels that are used to mail an envelope or ship a package. Shop for return address labels and custom mailing la...
... S. Postal Service( USPS) has provided envelope addressing guidelines that facilitate the efficient sorting and processing of mail by its electro-mechanical equipment. For example, use ...
The planning and design stages of a laboratory construction project pose unique challenges that are not present in typical industrial and commercial buildin...
... into the architectural planning in order to ensure that the lab design is not only efficient, but safe. Once the laboratory room is designed, the next step ...
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