2. Medium users
If you don’t want to buy machine and want to lower cost, a mini air compressor is also okay for you and air column machine is not a must. Air column machine is for automatically inflating and need air supply from air compressor.
Using air compressor only, you need to find the air inlet and inflate air into the bag by hand.
Mini air compressor inflating air column bag video as below.
The step is as similar as using hand pump. The only difference is changing the tools to air compressor.