« On May 11, 2007, I looked outside and observed a very smoky atmosphere due to the Florida wildfires. Having been diagnosed in 2004 with Bronchiectasis, I immediately put on First Defense Nasal Screens™ and went out. These filters worked so well, I stayed outside for an hour and ten minutes! Never before would I have done this under such terrible smoke conditions. Kudos to you for having a product that really works. »