• Even though RxCarbon Poly has the added benefit of deactivating hazardous drugs like oncology liquids, it costs about the same as the old-style chemo towels. The patent pending RxCarbon Poly is the only available surface protection with RP718 activated carbon to adsorb and deactivate hazardous drugs like oncology liquids. Barrier towels do nothing to the API’s in hazardous drugs, meaning; hazardous drug exposure risks still exist.