Oss hx review that is qd Apr 26, 2010 Р’В· QWAK,Mr. Shiny,Both O2 absorbers and Hand warmers are esencialy packets of IRON dust filings :alberteinstein:and when confronted with the O2 in the fresh AIR produce TEMPERATURE as an element of a chemical reaction. If the O2 is fully gone or all of the Iron has […]