removed from second connector 60 to permit attachment therewith or passage there through of matter into collection chamber 2 cap 62 may be removed from second connecter to permit the introduction of pulverulent carbon dioxide and or liquid or vaporous carbon dioxide to effect the formation of dry ice within collection chamber 2 fig1 shows second closure means 10 at second end 6 of collection chamber 2 when second connector 60 and cap 62 are all engaged to selectively seal or close second end 6 of collection chamber 2 referring now to fig 5 there is disclosed a sleeve 80 which functions as a filtration jacket which may also be referred to as a collection chamber when jacket 80 is about collection chamber 2 as disclosed in fig7 and in partial cross sectional view of fig7 disclosed in fig8 sleeve 80 is disclosed in fig6 as being tubular in configuration and having a diameter 82 in a preferred embodiment diameter 82 is of such dimension that sleeve 80 may be snugly slipped over collection chamber 2 sleeve 80 has a length 84 which is substantially of the same length 16 of collection chamber 2 sleeve 80 has a high resistance to vapor and is comprised of a porous substance through which a liquid or gas may be passed to trap constituents such as carbon dioxide which is purulent meaning that solid crystals of carbon dioxide are formed this may also be referred to as snow sleeve 80 acts to trap carbon dioxide which is transforming into or is dry ice sleeve 80 may be formed of a synthetic material made by kimberly clark and.