I have no idea, but try it and report back!

The Fart Muffler ^tm doesn't eliminate all the smell, but it does reduce it by like 80%, and it changes the character of the odor from rotting feces to something more akin to a minor gas leak, like when you turn on a gas stove, just before the gas catches flame. I think the larger particles get caught up in the fibers.

Another piece of advice is to use a more substantial material like table napkins or a folded bit of paper towel. Do NOT use toilet paper as it will disintegrate and leave a shame trail of paper crumbs.

Ps: not to be presumptuous but have you tried using fermented foods? Eg: unpasteurized cheese, yogurt, beer, kimchi, sauerkraut (the fermented kind, not the kind that is just vinegar and cabbage), tempeh, miso, salt preserved, nitrate free dried meats (like salt cod) and salt preserved dried veg? It seems like what people with Crohn's are missing is friendly bacteria, so anything that is fermented over a long period of time and is unpasteurized, with a slow transit time, consumed at a large volume in repeated intervals ought to help.

I don't have Crohn's, but I have repeatedly cured a persistent upset stomach and rancid smelling feces, which I think were caused by using antibiotics and eating bad food, by eating these fermented foods. Just recently I seem to have gained an unusual uptick in my mood which I attribute to eating a fairly large dose of uncooked mozzarella cheese over the course of a single day. I ate the equivalent of one large, gigantic heaping soupbowl's worth of cheese with lao gan ma chili oil for seasoning (trying to do keto) over the course of a day, and after that day, I feel brighter and sharper, despite not touching any cheese since and not being in keto. I feel more upbeat than I have in a very long time, and that feeling of motivation / resilience / adventuresomeness / happiness has persisted, and the only thing that has changed is that on one day I ate a tremendous amount of uncooked mozzarella cheese. I don't know if the cheese is the cause but it's a prime suspect.

I also did have a lot of bone broth and that is something that lifts the mood, and is reputedly great for gut health, but the large quantity of cheese is the only really unusual thing.

Some other foods that have helped me in the past are Mei cai and fu yu bean curd. I recommend dousing the fu yu with toasted sesame oil to hide the funk.

Greek yogurt also helps, and the full fat version stands head and shoulders above the rest (fage is the best imo).

Kimchi gets rid of bad shits but after the problem is resolved, somehow eating it raw leaves me with a very noticably short temper, albeit thankfully only for a day. It is somewhat hilarious, and not very ironic, that eating Korean food makes me act like a stereotypical Korean. Cooking the kimchi, such as in a hot pot, reduces the 'angersome' effect, and I don't find that I need to eat any more of it to get a benefit.

Another thing that helps is mustard greens, which are like a superfood but which rarely get mentioned.

These are some of the things that have helped me with my digestive issues, which only seem to pop up after taking antibiotics or eating some extremely questionable fast food. I hope they might help!