We did a little search to learn the true benefits of using a feather duster (ostrich feathers), and this is what we found via the Clean Team:
What good is a feather duster? Does it really clean or just move the dust around?
According to national cleaning expert Jeff Campbell, grandma had it right. An ostrich-down feather duster knows how to tackle dust. It's those other dusters - lamb's wool, synthetic materials, tacky dyed-chicken feathers - that push the dust and flip it into the air. With the ostrich-down feather duster, the feathers attract dust, holding it until you shake it free to vacuum later.
Image via Ostriches Online (price: $16.85).