The balls of fluff, or loose fibers, found on carpet or in the vacuum cleaner bag are the normal result of fiber left in the carpet from the manufacturing process. Removing these loose fibers does not affect carpet life or appearance. Because of their large size, these fibers are too big to become airborne or to be breathed in. With proper vacuuming and using a quality vacuum cleaner, most shedding gradually disappears within the first year after installation.