Review Of Best Air Purifiers - Electronics Article

By:

Picking the best air purifier is a very difficult decision since the need of each allergy or asthma situation has different needs. Adding to this tough task is different allergens and different types of home pollutions are removed in different ways. Below are some comparisons of some of the more popular type of air purifiers.

Air Purifiers with HEPA (High Energy Particle Arresting) filters were originally developed for the atomic energy commission and are used in commercial clean rooms to remove particles of dust and other airborne pollution. This is a paper or polymer sheet with very tiny holes that allow airflow to pass though the material but not very much else. The holes are so small you need a lot of surface area for a reasonable amount of airflow to pass though the material. It is because of this that the medium is always folded in an accordion or zigzag fashion to get a lot of surface area in a small area. There is also a mixed version of the technology that one manufacturer uses where the holes in the HEPA filter are slightly larger to promote more airflow but the air is charged with electrostatic wands. Which then attracts any of the smaller particles that get thru the holes. HEPA Filters work well in the home for trapping particulates. The disadvantage is that the filters must be changed regularly (every 6-months to 5-years depending on the manufacturer). Before purchasing you would also want to review how much air by-passes the filter, fan noise, how long the filter is good for and finally price of both original unit and replacement filters. The review of any HEPA unit depends on the efficiency (how much air by-passes the filter), fan noise, filter life and price.

UV air purifiers use ultraviolet light. Ultraviolet light in the right intensity destroys the DNA of microorganisms such as bacteria and viruses. The disadvantage of a UV air purifier is that removes very few gas pollutants and no air particles. It would be necessary then to purchase a UV air purifier along with another type or one that combines with another filter system.

Ion Generator Air Purifiers are small air purifier devices that put out a stream of negatively charged Ions. These ions charge particulate pollution and when the particle bumps up against something it sticks due to the electronic charge. These devices are used on US submarines and in the poultry industry to keep the feather dust down.
These air purifiers do what they say but there are some very distinct disadvantages. Particulates end up on your walls so your walls turn black near the device. Secondly, since they typically do not have a fan they only work in a localized area. They also do nothing for gas pollution and some may put off some dangerous Ozone.

You can see just with the 3 examples above there are differences in air purifiers. Research and comparison shopping is necessary to find the right purifier for your specific case. Do not allow promotional hype to sway your judgment, picking the wrong air purifier is as bad as not having one at all.

Digg del.icio.us Blink Stumble Spurl Reddit Netscape Furl

Article keywords: air purifiers, air purifier review, hepa filters, ozone filter, ultraviolet filters, ion filter

Article Source: http://www.articles2k.com

For more infomation and links to air purifiers and air purifier reviews, go to:
Air Purifiers

Top Electronics Articles
1). Choices for Digital Cameras By : Joseph Then There are so many different choices in digital cameras. There are many things to consider when you are deciding on the best camera for you.
2). Digital Projection in Your Home Theater By : Mitchell Medford A projector is a device that integrates a light source, optics system, electronics and display(s) for the purpose of projecting an image from a computer or video device onto a wall or screen for large image viewing. There are hundreds of products available in the market and they are differentiated by their resolution, performance and features. These devices can be attached to a computer or video device just as you would connect a traditional monitor.
3). All You Need to Know About Night vision Equipment By : Rory H. Hawkins Night Vision is an optical device consisting of high-quality image intensifier tubes and optics that amplify existing light. Night Vision makes it possible for you to see in conditions that are otherwise not possible for naked eyes.
4). Apple I-Pods, Why Are They So Popular? By : Shakib Nassiri These days while your just walking around school, work, the mall, or just about anywhere you’ll see many people listening to their Apple I-Pods. You might see some with cool accessories such as portable speakers, cool looking cases, voice recorders, FM transmitters, remotes and much more. Lets face it the Apple I-Pod has become the most popular mp3 player around and it doesn’t seem like it will loose that #1 spot anytime soon with all their new little inventions.
5). What To Look For In A Digital Camera By : Sandra Stammberger Digital cameras are expensive and if you are going to buy one you need to make sure that you make the right purchase. You work hard for your money and you need to know that you are getting your moneys worth. So make sure that you take the following into consideration before you make that final commitment.
6). Rear Projection LCD TV By : Linda Harrison The least expensive type of large TV is a rear-projection LCD TV. Some projection TVs have three cathode-ray picture tubes (CRTs), which are like smaller versions of the tubes used in conventional sets. The images from those small tubes are projected onto the back of a 40 inch to 60 inch plus screen, giving them the name rear projection TV. Other rear projection TV sets use LCD, digital light processing (DLP), or liquid crystal on silicon (LCoS) technology in place of CRTs.
7). Jamorama Review By : Joseph Tierney Review of the popular guitar product, Jamorama.
8). Searching On The Web For A LCD Monitor With TV Tuner By : Ryan Tenney Are you searching for a LCD monitor with TV tuner? Are you on a budget and looking for a decent LCD monitor with TV tuner that is in your price range? The internet is a great place to start your search for a LCD monitor with TV tuner. Here you can not only read reviews and get an idea of what kind of model you are looking for, but you can also comparison shop to find the best deal on the web for a LCD monitor with TV tuner.
9). Minolta F10BF Camera Review By : LWN This medium-size 35mm camera has many features, including motorized film advance/rewind, lens cover with shutter lock, red eye reduction, built-in flash, and large view finder. We developed a roll of film from it, and found that it is capable of taking good-quality photographs. However, two drawbacks are that it is easy to accidentally rewind the film (the rewind is motorized), and it is more difficult to load the film than with manual cameras.
10). How Electronic Air Cleaners Work By : Erica Bosworth Electronic air cleaners clean the air without a filter. Most contain a collection grid to attract the impurities. These must be cleaned regularly. You can purchase these systems to clean one room at a time or have a whole house system installed to keep every room clean. As the air passes through the machine, it is given an electrical charge. This also charges the impurities in the air.

New Electronics Articles
1). Some Of The Things You Need To Know Before Considering Buying An HDTV Television By : Gregg Hall If you are looking for a new TV you may be looking at getting a plasma screen or a high definition television. Before you make your choice there are a few things you may need to keep in mind.
2). Things You Can Do To Extend The Life Of Your iPod Battery By : Gregg Hall When iPods were first introduced by Apple, they featured battery packs that were very difficult to remove and replace. It was their opinion that once the battery was no longer useable, a new iPod should be purchased as opposed to just replacing the battery pack.
3). Headphones Are For Many Uses By : RC Rougeux More and more people are using headphones in new ways. Bluetooth for cell phones, headphones for computers...just to name a couple.
4). Here Are The Most Important Devices You Need Yo Be Sure Have Batteries By : Gregg Hall Batteries are the most important to have, since they provide the power necessary to keep us going until the lights come back on. Be sure to keep a large supply of batteries of every type.
5). How To Decide Whether Or Not HDTV Is Right For You? By : Gregg Hall HDTV or High Definition Television offers many benefits over traditional analog television. The FCC is pushing broadcasters, electronic manufacturers, and consumers to switch in 2006. Are you ready to join the experience?
6). Should You Make The Switch To HDTV? By : Gregg Hall When looking for a new HDTV set it is important to take your time and compare television models. Do your research and arrive at the store prepared with all your questions.
7). How To Choose A Barcode Printer By : KB Lim Barcode Printers nowadays comes in all sorts of shapes and sizes with varying price range. It can also either be hand-held or desk bound. Technically, general purpose laserjet and inkjet printers cannot print barcodes by default.
8). Take Your Digital Camera Along For A Photo Safari By : Gregg Hall Are you a shutterbug? Do you love to take photos everywhere you go? Pictures are important because they preserve memories for us that we would not otherwise have. It can be a fun hobby as well as a rewarding profession; in fact most professional photographers begin as hobbyists.
9). Projection Screens For Movie Theatres By : Keith George Projection screens are mainly required for commercial purposes like in cinema halls or conference rooms, but individuals might buy them for their home theatre.
10). Digital Projector – Give A Bigger Picture By : NamSing Then Digital projectors are those video projectors which are used in conferences for presentations. The digital projectors receive video signals from, usually, desktop computers and display images on large screens which can be easily comprehended by all in the gathering.