A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).

The ads highlight features like "twenty thousand tiny filters" and "balanced flavor," while also showcasing the lifestyle associated with smoking these brands. Highlights Viceroy's Unique Filters ...

A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).