Airborne, which advertised its supplement helped fight off colds, will refund money to consumers who bought the product, said the non-profit advocacy group Center for Science in the Public Interest.

"There's no credible evidence that what's in Airborne can prevent colds or protect you from a germy environment," CSPI senior nutritionist David Schardt told CNN. "Airborne is basically an overpriced, run-of-the-mill vitamin pill that's been cleverly, but deceptively, marketed."

Airborne, based in Carmel, Calif., also will pay for nationwide advertising that outlines how to file for a refund.

Airborne was created by second-grade teacher who "studied the benefits herbal therapies used in Eastern medicine," the company's Web site said.

A recorded message at the toll-free number of the class-action settlement administrator said Airborne Health Inc. admitted no wrongdoing, CNN reported.

A hearing to consider the settlement's final approval is scheduled for June 16.

Airborne changed its advertising campaign when a plaintiff filed suit against the company in March 2006. Advertisements ceased mentioning cold-curing claims, promoting claims that Airborne helped boost the body's immune systems.