<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div>Hi all,</div><div>I was testing my two scrubbers today and wonder if a scrubber performs better when the CO2 level is higher? So when my system is running at 1600 PPM with one person, will it then run at 3200 with two persons? I don't have two persons at the moment to try.</div><div>Hank</div><br></div></body></html>