The study compared room-side blinds on both casement and double-hung windows to Designer Series casement and double-hung windows, with the blinds protected between glass, in six homes over the course of three months.Research found windows with room-side blinds collected 200 times more indoor airborne allergens than the Designer Series products.
"This new preliminary research which is part of an ongoing study will help consumers -- especially those with allergies or asthma -- make more informed choices in furnishing and enjoying their homes," said Sherri Gillette, Designer Series brand manager at Pella. "The real beauty of Designer Series is that you can have it all in an integrated package -- style, cleanliness, sophistication, ease of operation, energy efficiency, and the flexibility to change window fashions as your decorating tastes change."
According to experts at the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, it's estimated that 35 million Americans suffer from upper respiratory tract symptoms that are allergic reactions to airborne allergens. Worldwide, airborne allergens cause the most problems for people with allergies. The respiratory symptoms of asthma, which affect approximately 11 million Americans, are often provoked by airborne allergens.