2007 Lexus ES350 wipers, windshield & visibility problems

Tl* the contact owns a 2007 lexus es350. The contact stated that the air and heating system releases aluminum trihydrate through the vents. As a consequence he had to have surgery to stop his nose bleed. The vehicle was taken to the dealer, but the technicians have not been able to provide a remedy. He contacted the manufacturer to request a toxicity report. Upon contact a representative concluded that aluminum trihydrate is commonly used as an antacid, therefore there was not associated safety hazard.

I own a 2007 lexus es 350 and on june 18, 2011 while driving, the passenger rolled down her window and the window came off track while trying to roll up!! We had to pull over and manually readjust the window to keep it in place as it was completely coming out of the panel. The window cannot be lowered now until I get it into the dealership. This could have been disastrous! I have noticed numerous complaints about the lexus's windows coming out because of something breaking.