Filterless Air Purifiers

There is so much dust in our flat that it makes me sneeze. We vacuum every 2-3 days but we do have any books and small items. While I am intent on de-cluttering, I was thinking of getting this air purifier – http://cgi.ebay.co.uk/NEW-PREMIAIR-99-EFFECTIVE-HEPA-AIR-CLEANER-PURIFIER_W0QQitemZ120221274028QQihZ002QQcategoryZ43510QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
What do you think? Are these purifiers effective?

Is someone at your home suffering from asthma or any type of allergies? If yes, then you need an indoor air purifier. They promise to protect your home from dust, germs and dangerous pollutants. You can try for ionic air purifier. They claim that they remove the harmful particles from the air and make the [...]