We just bought one last month, I really like it, it seems to work really well. We wanted one and were considering one of the ionic pros as my Sister really likes hers - however - she also got my Mom one and since then she has had two respiratory infections. By chance my Husband came across a lot of information that they aren't really very good for you and some reports that they cause RI's - so decided not to get one (may or may not be true).
We chose the Honeywell, (bought it at London Drugs). I like that it has a Hepa filter that lasts several years (they say you don't have to replace it but I believe the instructions said you should every 5 or 6 years) and it also has a carbon pre-filter that only needs to be replaced about once a year or less and on the low setting it's quite quiet.
Honeywell True Hepa Air Purifier - 10590 N• New LifeTime Hepa Permanent filter is vacuum-able and never needs replacement
• Activated carbon pre-filter helps reduce odours and protects HEPA life
• Reduces up to 100% of bacteria and germs
• 3-speeds
• Room size 10 x 11
CAD $119.99
Brand Honeywell
Colour White
Hepa Filter Yes
Model 10590N
Multi Speed 3 speeds
Number of Filters 1 LifeTime permanent filter **there are actually two, has a carbon pre-filter as well.
Room size ie 900 sq ft 110 sq ft
Here is info on the Hepa filter used in this model: *($19.99 at amazon.com) (Universal Replacement HEPA Filter Part # HRF-11)The Honeywell Universal True HEPA Replacement Filter is 99.97% effective at capturing particles such as household dust, smoke, pollen, mold spores and cat dander*. This universal filter is designed to replace Honeywell True HEPA filter numbers 20500 and 20590.
The carbon filter is Universal Replacement Prefilter Part #38002 ($10.75 at amazon.com) (Can probably find the filters cheaper elsewhere, but it gives you a ballpark figure. With the carbon filter it is a 'cut to size' so you probably get 2-3 from each one purchased.
I found the actual unit at Grand and Toy in the U.S. for $ 125.99 - can probably find it elsewhere too