<div dir="auto">James, good info. Maybe this is a good project to document and put on the Psub site?<div dir="auto">Steve</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 20, 2021, 2:34 PM James Frankland via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all.<div>Ive been experimenting with various manual "breath through" scrubbers for use in an emergency, and i have finally come up with a solution that works for me. </div><div><br></div><div>Ive been testing an anesthesia scrubber cartridge. This has turned out really well.</div><div><br></div><div>Previously I made breathing tubes and masks that utilized the main scrubber, but the trouble is that they were all too difficult to breath through. I made one with a battery electric fan to assist in breathing and even one with a CPR bulb in line to assist. Nothing really worked, but this new one is really good.</div><div><br></div><div>Its a cartridge for an anesthesia machine and has spherical balls on CO2 absorbent which makes it easy to breath through. I used various different masks until i got one that was easy enough to adapt to the hose and comfortable.</div><div><br></div><div>I only did half an hour as it was so hot, but I got cabin CO2 from 5000ppm to 600ppm I think. The main scrubber was on, but obviously the manual one was taking the most of it. <br></div><div><br></div><div>Anyway, I feel much more confident I can control CO2 in an emergency now.</div><div><br></div><div>If anyone is interested, i can send more details of the parts used and modifications, which were super simple.</div><div><br></div><div>Pic attached and a video of me using it. Skip to 7:35 for the manual scrubber test.</div><div><br></div><div>Regards</div><div>James</div><div><br></div><div><a href="https://www.youtube.com/watch?v=yyHlPgrN57Q" target="_blank" rel="noreferrer">https://www.youtube.com/watch?v=yyHlPgrN57Q</a></div><div><br></div><div> <br></div><img src="cid:ii_kq5ixpmj0" alt="20210619_170803.jpg" width="542" height="407"><br></div>
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