How does the SilentAir air purifier compare with the Shaper Image unit?
The SilentAir air purifier and Sharper Image unit are similar in that they use the same electrostatic technology. The difference is Sharper Image units are very expensive, which makes up for the fact that no replacement filters are required. Instead of filters, a collection element is used and it is left upon the user to handle, clean and/or wipe down the element exposing the user to the same contaminants that are claimed to be harmful to the health. If the collection element is not thoroughly cleaned, the same contaminants can be reintroduced into the environment when the element is placed back into the unit. If the element is not cleaned often, the unit will tend to produce a considerable constant crackling noise. The SilentAir air purifiers are very affordable and uses disposible collection sheets as part of the patented technology. The specially engineered collection sheets trap and hold airborne particles as small as 0.002 microns. Every month, when the indicator light comes on, s
