is projected to be $14.5 billion this year, up from $6.2 billion only 10 years ago. In addition to the tremendous discomfort associated with these diseases and their all too often tragic outcomes (there are more than 5,000 asthma related deaths per year in the U.S.), the estimated annual cost of asthma in the U.S. ear ache), the most common childhood disease requiring a healthcare visit. population) as well as otitis media (e.g. It can lead to rhinosinusitis (in 14% of the U.S. children (1 in 13) now suffer from asthma, accounting for 17% of all pediatric emergency room visits.Īllergic rhinitis or hay fever affects 40 million Americans. A recent study concluded that the risk due to residential allergen and pollutant exposure accounted for 39% of doctor-diagnosed asthma in U.S. There is some speculation as to the cause of this increase, whether due to more time spent indoors in “tighter” homes with less fresh air or because of improvements in early diagnosis of disease. and around the world has increased at an alarming rate over the last 20 years and currently affects more than 15 million Americans. BACKGROUND OF THE INVENTIONĪsthma in the U.S. More particularly, this invention relates to systems in the personal environment that deliver conditioned air to improve health or comfort. This invention relates to systems for delivering conditioned air to personal breathing zones. 8, 2003, and claims the benefit of Provisional Application Ser. This application claims the benefit Provisional Application Ser.
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