vaporized hydrogen peroxide
... that vaporized hydrogen peroxide was used to disinfect buildings contaminated in the 2001 anthrax attacks in the U.S.?
... that <b id="mwaA"><a href="./Vaporized_hydrogen_peroxide" id="mwaQ" rel="mw:WikiLink" title="Vaporized hydrogen peroxide">vaporized hydrogen peroxide</a></b> was used to disinfect buildings contaminated in the <a href="./2001_anthrax_attacks" id="mwag" rel="mw:WikiLink" title="2001 anthrax attacks">2001 anthrax attacks</a> in the U.S.?