There is no smell!!!! And it doesn't really carry out of the tray.
This is the best cat litter ever! I've tried quite a few brands but most recently I've been using the leading brand seen in most UK supermarkets and I'm happy to say that Tigerino cat litter beats it by a mile! There is no smell! My cat has an enclosed dome-shaped litter tray and whenever she used to do a no.2 we would all gag as the smell wofted around the room alerting us that she'd been. With the Tigerino cat litter, I genuinely cannot tell if she has been or not. The only downside is when I first started using Tigerino, I forgot to check the litter tray as I assumed another family member had cleaned it as there was no smell, but when I asked them what they thought of the new litter and they told me they hadn't been cleaning up after the cat, I rushed to check and there were three poos and no one noticed because there was no smell! Obviously now I make sure we check throughout the day, but it's such a relief to not have to light a candle and air the room after she's just used it. I'm going to be buying Tigerino all the time from now on!
Also, this cat litter doesn't really seem to find it's way out of the dome-shaped litter tray like the leading brand I used to use.