| For more than a decade, Americans have been | | | | that do not exceed public health standards, ozone |
| becoming increasingly aware that the air that they | | | | is generally ineffective in controlling indoor air |
| breathe in their homes is generally not of good | | | | pollution. The concentration of ozone would |
| quality. Between cooking and pet odors, mold, | | | | have to greatly exceed health standards to be |
| mildew, the widespread use of plastic materials, | | | | effective in removing most indoor air |
| and carcinogenic cleaning products, many feel that | | | | contaminants. In the process of reacting with |
| their inside air has been compromised. What do | | | | chemicals indoors, ozone can produce other |
| consumers do? Purchase an air purifier. In 1998 I | | | | chemicals that themselves can be irritating and |
| was given the gift of an Alpine Living Air Classic | | | | corrosive. |
| machine. It has been touted as an ideal solution | | | | As you can imagine, I no longer use my Alpine |
| for problem air. Lets see if the product | | | | Living Air Classic. It sits in my office, unplugged, |
| lives up to its billing. | | | | and working well in its new role as a coffee cup |
| As far as air purifiers go, the Alpine Living Air | | | | holder while I work on my computer. Frankly, the |
| Classic [now sold by EcoQuest International] is | | | | claims made against this unit made by the federal |
| neither cheap nor does it look cheap. Weighing 19 | | | | government and others are certainly frightening. |
| pounds, the Classic is housed in a | | | | So, how do I achieve clean air today? Again, by |
| wooden cabinet available to consumers in four | | | | visiting the EPAs site I have learned that |
| colors: dark walnut, light oak, putty, and black. It is | | | | there are 3 common approaches to reducing |
| a solid unit with a thick six foot electrical cord. | | | | indoor air pollution: |
| Claiming coverage of up to 3,000 square feet | | | | Source Control: Eliminate or control the sources of |
| most homes could operate with just one unit | | | | pollution; |
| although a second one might be needed if your | | | | Ventilation: Dilute and exhaust pollutants through |
| house is large, indoor air pollution is high, or you | | | | outdoor air ventilation, and |
| have high humidity. Prices currently start at $549 | | | | Air Cleaning: Remove pollutants through proven air |
| so it is no cheap investment. | | | | cleaning methods. |
| How does it work? The unit produces ozone | | | | Of the three, the first approach -- source control |
| which coupled with an active fan it reproduces | | | | -- is the most effective. This involves minimizing |
| and spreads the clean, fresh scent of a | | | | the use of products and materials that cause |
| thunderstorm throughout your home. Okay, I am | | | | indoor pollution, employing good hygiene practices |
| parroting some of the marketing material...I had to | | | | to minimize biological contaminants (including the |
| because it isnt that easy to describe. | | | | control of humidity and moisture, and occasional |
| So, does it work? As far as producing the | | | | cleaning and disinfection of wet or moist |
| thunderstorm scent it certainly | | | | surfaces), and using good housekeeping practices |
| does. As far as getting rid of pollutants, odors, | | | | to control particles. |
| and the like I cannot tell you for sure that it does. | | | | The second approach -- outdoor air ventilation -- |
| Indeed there has been plenty of controversy and | | | | is also effective and commonly employed. |
| government rulings against the reported claims of | | | | Ventilation methods include installing an exhaust |
| air purifiers over the years by the U.S. | | | | fan close to the source of contaminants, |
| Environmental Protection Agency {EPA}, | | | | increasing outdoor air flows in mechanical |
| Consumers Union [they produce | | | | ventilation systems, and opening windows, |
| Consumers Report magazine], and the | | | | especially when pollutant sources are in use. |
| American Lung Association. | | | | The third approach -- air cleaning -- is not |
| The EPA has this to say, whether in its | | | | generally regarded as sufficient in itself, but is |
| pure form or mixed with other chemicals, ozone | | | | sometimes used to supplement source control |
| can be harmful to health. When inhaled, ozone can | | | | and ventilation. Air filters, electronic particle air |
| damage the lungs. Relatively low amounts of | | | | cleaners and ionizers are often used to remove |
| ozone can cause chest pain, coughing, shortness | | | | airborne particles, and gas adsorbing material is |
| of breath and, throat irritation. It may also worsen | | | | sometimes used to remove gaseous |
| chronic respiratory diseases such as asthma as | | | | contaminants when source control and ventilation |
| well as compromise the ability of the body to | | | | are inadequate. |
| fight respiratory infections." They go on to say, | | | | If you are intent on purchasing any air purifier, I |
| some studies show that ozone | | | | recommend that you first do plenty of |
| concentrations produced by ozone generators can | | | | independent research apart from what the |
| exceed health standards even when one follows | | | | marketers tell you. By following the 3 methods |
| manufacturers instructions. Many factors | | | | stressed by the EPA you should be able to |
| affect ozone concentrations including the amount | | | | achieve acceptable indoor cleanliness without |
| of ozone produced by the machine(s), the size of | | | | resorting to purchasing expensive even |
| the indoor space, the amount of material in the | | | | dangerous air sanitization equipment. |
| room with which ozone reacts, the outdoor ozone | | | | For more information please read: |
| concentration, and the amount of ventilation. | | | | The EPAs Position: |
| These factors make it difficult to control the | | | | Some Air Purifiers May Produce Dangerous Levels |
| ozone concentration in all circumstances." | | | | of Ozone: |
| In conclusion, the EPA states: Available | | | | What is Ozone Air Pollution? |
| scientific evidence shows that, at concentrations | | | | |