O2 Absorber
Time -- O2 level
5:53 -- 20.9%
5:56 -- 19.9%
5:58 -- 19.0% <- O2 sensor alarms begins ringing
6:53 -- 5.8% <- 1 hour in
7:53 -- 1.9% <- 2 hours
8:08 -- 1.6%
Level is still dropping, but VERY slowly. Calling off test #1
ONE Toe Warmer
Time -- O2 level
8:13 -- 20.9%
8:14 -- 19.9%
8:15 -- 19.0% <- O2 sensor alarm begins ringing
9:13 -- 1.1% <- 1 hour
10:13 -- 0.5% <- 2 hour
Level is not dropping that I can see. O2 sensor MAY not sense accurately below this level.
http://www.survivalistboards.com/showthread.php?t=99140&page=4
This test was preformed on another site to see which is better. The hand warmer won. And after the bag was opened again the warmer activated again meaning it will remove o2 several time in its life.