Pristine has been tested in the Departments of Asthma, Allergy and Immunology at two leading Colleges of Medicine. Both found the same result: Pristine is an effective barrier to dust, dust mites and associated allergens that can cause allergic symptoms among sufferers of asthma, rhinitis and related respiratory problems.
Pristine Allergen-Barrier Fabrics are air breathable with no plastic membranes. The extremely small fabric pore size creates an impenetrable barrier to allergy and asthma-causing microscopic dust mites and their by-products, yet is soft, breathable, lightweight and quiet.
Washing Instructions for Pristine Basic Fabric:
May be washed in hot water (up to 160 degrees Fahrenheit) in the washing machine without any reduction in comfort or effectiveness. Do not use bleach.
The Pristine covers may then be dried in the dryer on the Permanent Press setting (not the highest heat).
The covers only need to be washed once or twice a year, but could be washed more frequently if needed. Normally, more frequent washings are not needed.