OCB ActivTips Extra Slim 6 mm-Activated Carbon Filter with Ceramic Caps-1 Bag of 50 Pieces, White, S

Very good for j

A great idea. I'm not sure if they work though. The temperature of the smoke was no different than using a roach/tip. The contents seem to be very loosely packed so I'm not sure if they actually do anything. I'm guessing the smoke just passes over the top rather than through the charcoal. It's a shame.

This is the second time I've bought these but am absolutely disappointed with theis batch's quality. They all seem to be broken. Charcoal comes out when you light them up and pull on them. They are soft to tough and seem crushed. Returning for refund.

I've been using these for 6 months now however the product quality is drastically reduced. The last pack i ordered has given me nothing but resin-y smokes, In future i'll be using the alt tips that i use (CTIP aluminium cones) as i've had no resin problems from those tips at all.

These are not good at all. They get blocked up and you can't get a draw out of it ,,,,,ctips are the best

Absolutely useless, miles behind other brands of carbon filters. Starts leaking after couple of puffs. Went straight to the bin. Stay away from these, ruined couple of good doobs.

Great for herbaceous rolled cigarettes. Cools smoke, filters some tar. Just wish there was a slimmer size so I didn't have to build humongous rolls/ tighter pull.