go with nitrogen co will hurt
Helium = Nitrogen
Case 1 (male)
In accordance with the Dignitas protocol, the member exhaled deeply
before placing the mask in the working position. Subsequent breathing
appeared normal for approximately 35 s, and then the breathing rate
accelerated. At this point (36 s), the eyelids opened, the eyeballs
rolled, and the head tilted back. It is estimated that consciousness
was lost approximately 36 s after the face mask was in place.
At approximately 60 s, there were purposeless movements in the arms.
The left arm extended upward and reached about involuntarily. The
right hand was held by an attendant, for support. The attendant
appeared surprised at the arm movements. Without struggle, the
attendant continued to hold the member's right hand. Gross arm
movements and fine tremors lasted for approximately 1 minute.
Eventually, both arms relaxed and the left arm rested with the hand
under the lower back.
Approximately 3 minutes after the start of the procedure, breathing
appeared to stop, except for six gasps between 3:05 and 6:30. There
were two faint breaths at 7:16 and 7:55. The helium flow was shut off
at 8:25. After the gas was stopped, there were four gurgled snorts at
8:38, 9:07, 9:17 and 10:15.
Case 2 (female)
After exhaling deeply and placing the mask in the working position,
the member appeared to breathe normally for approximately 50 s, after
which the breathing rate accelerated and the eyelids blinked rapidly.
It is estimated that consciousness was lost approximately 47 s after
the face mask was in place. At approximately 58 s the eyelids fixed
open. At 1:05 there were tremors in the arms, arching of the back and
the head tilted back. At 1:18 the neck relaxed and at 1:36 the back-
arch relaxed. At 1:37 the left arm contracted at the elbow, relaxing
15 s later, and then contracting/relaxing two more times over the next
45 s. There were two more slight movements in the left arm at 6:33 and
6:46.
At 2:14 the member exhaled deeply and this was accompanied with a
moaning sound that lasted for 12 s. From 2:45 through to 8:35 there
were 21 short gasps, spaced apart by as few as 6 s and as long as 47
s. At 11:47 the gas flow was stopped, more than 3 minutes after the
final gasp.
Case 3 (female)
This member exhaled before applying the mask to her face, but she then
spoke a few words, which suggests that she may have inhaled room air
before the mask was in the working position. She spent 11 s adjusting
the mask in the working position and approximately 3 s after releasing
her hand from the mask she uttered a few indistinct words. After the
mask had been in the working position for at least 26 s, the Dignitas
attendant spoke to the member. The member nodded affirmatively,
indicating that she was conscious. At 52 s, the member's breathing
rate began to accelerate and her eyelids fluttered and blinked. Loss
of consciousness is estimated to be approximately 52 s after the face
mask was in place. At 1:06 her eyelids fixed open, her head tilted
back and her quickened breathing continued. At 1:21 the left hand
clenched into a fist and at 2:33 the left arm slowly extended for 10
s. During this same period the member's lips vibrated with her exhaled
breaths, implying relaxation of facial muscles.
At 2:23 there was a contraction of the left arm, a deep exhalation at
2:30, a contraction of the left arm at 2:50, and at 3:17 there was a
big snort and extension of the left arm. At 4:03 breathing paused and
then at 4:17 there were seven quick short breaths lasting to 4:33. At
4:48, 4:43 and 4:56 there were three final breaths.