I dont think many smokers care about what others feel about the smell of smoke in their homes or cars. Else, they would be smoking outdoors.
Also, what about the smoke you exhale that spread in the room? No point lighting a cig and placing it on this ashtray to not have smoke. Doubt the product's effectiveness but it does seem to be a useful product. Wonder if it will find many takers, the overall preference will still be open the windows and or spray roo freshener