Most curtains, whether they’re casual cotton, lace or fancier damask, are made of woven fabrics that gather dust, pet hair and dander, even mold spores. Over time, these things accumulate, and cause a drastic effect to your indoor air quality. Every time the curtains are opened or closed, dust and other debris begin swirling around in your home. You’ll find that debris settling on your furniture as well as your carpet, where every step stirs it up again. For allergy sufferers, cleaning curtains regularly will provide significant relief to indoor allergy symptoms.