Place a metal clamp on the end of the tube and insert a flow control valve. Tighten the clamp with a screw so the connector doesn’t move. Do the same on the other side with a short piece of tube. Connect the free part to the connector of the glass jar that has a piece of tube attached to it on the inside and secure it with another metal clamp.
Grab a piece of tube and slightly burn one of the ends, and rapidly insert it into the remaining connector. Put a T connector on the other side of the tube and place a piece of tube on each of the free outlets. Leave the middle one free for the safety bottle and attach another T connector on the other tube. Place two more pieces of tube on each end and finally put two more at the ends.
Finally, connect two other transparent tubes to the Bunsen burner, through which the gas will come out, and to the air chamber, where the gas will be stored. Secure both ends with a metal clamp each.