[dzhiurgis]

To sibling comment: bongs cool down smoke, not filter it

[krageon]

If they only cooled it down, the water wouldn't be so incredibly disgusting

[runnerup]

I tested this in college, they definitely also filter it. Just not very well. But 3+ chamber bubblers do filter fairly well.

Still, if you’re looking for that, edibles and temperature-controlled vaporizers are way to go.