Example 1: A package of t-shirts is labeled "Shirts made with a chlorine-free bleaching process." The shirts, however, are bleached with a process that releases a reduced, but still significant, amount of the same harmful byproducts associated with chlorine bleaching. The claim overstates the product's benefits because reasonable consumers likely would interpret it to mean that the product's manufacture does not cause any of the environmental risks posed by chlorine bleaching. A substantiated claim, however, that the shirts were "bleached with a process that releases 50% less of the harmful byproducts associated with chlorine bleaching" would not be deceptive.
Example 2: A manufacturer advertises its insulation as "formaldehyde free." Although the manufacturer does not use formaldehyde as a binding agent to produce the insulation, tests show that the insulation still emits trace amounts of formaldehyde. The seller has substantiation that formaldehyde is present in trace amounts in virtually all indoor and (to a lesser extent) outdoor environments and that its insulation emits less formaldehyde than is typically present in outdoor environments. Further, the seller has substantiation that the trace amounts of formaldehyde emitted by the insulation do not cause material harm that consumers typically associate with formaldehyde. In this context, the trace levels of formaldehyde emissions likely are inconsequential to consumers. Therefore, the seller's free-of claim would not be deceptive.
16 C.F.R. §260.9