Carbon filters

So wifey is saying house reaks of plants due to tomatoes and peppers i have inside. Just setup ducting to go from tent into attic but still have that plant smell. Concerned with ordering a carbon filter on like Amazon and raising questions, I don't want folks to think I have a weed garden but I needs a filter and no one local has em close by(closest hydroponics store is 3hours away). Is it sketchy or not sketchy to order one via Amazon like ac infinity or something. Am I overthinking it? Or does anyone do discreet shipping on filter?