How to collect high purity fresh air for portable canned oxygen? <br /> <br />Step 1: use the high pressure breathing air compressor to fill fresh air for breathing air cylinder. (as this video shows) <br /> <br />Step 2: use the portable canned oxygen filling machine to fill the fresh air into portable oxygen can from the air cylinder (Portable Oxygen Can Filling Machine https://www.youtube.com/watch?v=uzKy0iO8Shg) <br /> <br />Portable Canned Oxygen Production Technical Information Guides <br />http://www.jrpacking.com/air-filling-machine/ <br /> <br />Welcome to Contact Us for More Information about This Machine <br />http://www.jrpacking.com <br /> <br />Portable Oxygen Filling Machine - 1600D Vacuum Crimping and Gas Filling Machine <br />https://www.youtube.com/watch?v=uzKy0iO8Shg <br /> <br />Portable Oxygen Filling Machine Test Video from Our Chile Customer <br />https://www.youtube.com/watch?v=epmVc57cwFg&list=PL17JAD-Q4rMNy2e8gTtZpNwoT4KnKCIIn&index=2 <br /> <br />How to Select an Aerosol Filling Machine <br />http://www.jrpacking.com/how-to-select-an-aerosol-filling-machine/ <br /> <br />Watch More Videos about our Full Automatic/Semi Automatic/Manual Aerosol Filling Machines <br />https://www.youtube.com/channel/UCoIda2ArkRFJEi0cE16d0Iw