Even Occasional Use Of Spray Cleaners May Cause Asthma In Adults

http://www.sciencedaily.com/releases/2007/10/071012080132.htm

Using household cleaning sprays and air fresheners as little as once a week can raise the risk of developing asthma in adults, say researchers in Europe. Such products have been associated with increased asthma rates in cleaning professionals, but a similar effect in nonprofessional users has never before been shown.