<div dir="ltr">Does anyone remember who sat in their sub with the hatch closed to see how long they could stay before the Co2 PPM became dangerous?<div><br></div><div>Rick</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, May 23, 2025 at 9:22 AM Rick Patton <<a href="mailto:satwelder@gmail.com">satwelder@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Someone posted a while ago that they sat or layed in their sub until the PPM got dangerous.<div>Can't remember who that was? Wanted to get more information from them if possible.</div><div>Thanks</div><div><br></div><div>Rick<br><div><br></div></div></div>
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