Choice of air purifiers - Blueair Air or Lights?

Hi all - I am looking to buy an air purifier for my bedroom (a little over 150 square feet), to help reduce dust, airborne allergens, etc. My mother smokes a lot, This does not help. After being diagnosed with a (very) minor, restrictive lung disease, I start taking better care of my health - in particular as regards respiration. We have the air filter general attached to the A / C / heating unit, but I want something more.

Do some research, I thought I would just get the Sharper Image Ionic Breeze, but have read many bad things about this - In particular the ozone produced is very bad for your health. Looking around, I found the Blueair 250E Digital Air Purifier (http://www.achooallergy.com/blueair250eairpurifier.asp product_reviews #) and the Air Lights Plasma Air Purifier (http://reviews.ebay.com/Review-of-the-Air-Lights-Plasma- Air Purifier_W0QQugidZ10000000002480036). I am inclined to Blueair, but as other comments and suggestions!

I heard great things about BlueAir and know ... more.

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