Well worth the cost!
This carbon based product does exactly what it says if you seal your lips inside the small end and ensure all smoke is exhaled into it not letting any escape even if you need to inhale an extra time through your nose. Then there will absolutely be no smoke aroma. Over time becomes clogged and has to be replaced . Wiping the inside after use will extend its use life.It will eventually become to clogged to blow through.<br />If the filter was replaceable I would give it 5 stars. But even at 4 it's a solid investment for the cost and results. YouTube has positive reviews
Rating: 4 stars