Hi,
Yes, this filter is driven by air pump. Fortunately, there is not much sound make by the bobbles.
I made two filters two months ago.
The first filter were made with the same idea but the air pipe was tided inside the bottle (as shown). This allow easier step for completion but takes up space for filter material.
The second filter were made with different idea (as shown).
The efficience of both filters can be seen in the third photo. I seems the left area with the first filter in use is more pure the the right area with the second filter in use.
The overall draw back of the filter is : you have to be careful when breeding because it sucks fries.
You may have to block all water inlet with cotton.