I review the Navage nasal care machine in this video. If you are in construction, work with wood, or any type of material that creates dust, you should consider getting one of these. the more dust you inhale from different materials the greater chance of developing allergies and sinusitis. I do a review and a demo in this video. it may be a bit gross for those with weak stomachs.
if you are interested in getting one of these you can get one here
http://navage.refr.cc/williamgelvin and get a $20 off code.