alt Hacker News> The air filter was basically a shisha-pipe that bubbled the incoming air through wire wool and engine oil.
What is a shisha-pipe?
Replies
numpad0 • last Wednesday at 11:04 PM
Class of Middle Eastern tabletop usually-tobacco smoking devices with water based filtering
Mraedis • last Wednesday at 6:29 PM
Also known as hookah or just waterpipe.
ozonhulliet • last Wednesday at 6:29 PM
Basically a fancy bong.
The other name for these filters are "oil bath filters" basically it snorkles the intake air through oil and that sticks to any dust and dirt.