Are Barnakl ceiling fan air purifier pads worth it?

Here's the mechanism, and it's simpler than it looks. Activated coconut shell carbon is riddled with microscopic pores, over a thousand square meters of surface area packed into a single gram, and that surface grabs onto passing gas molecules, odors and fine particles the way static grabs dust. A ceiling fan already pushes a lot of air, that's its entire job, so sticking a carbon pad to the top of each blade means every rotation forces a slice of your room's air across that porous surface. No motor, no filter housing, no added noise, the fan just does the work it was already doing, and the pad gives that air something to bump into on the way past. That's also why the whole thing is self-adhesive and disposable instead of washable: it isn't forcing air through a dense membrane like a HEPA unit does, it's passive adsorption, and those pores eventually fill up and stop grabbing anything new. It won't pull smoke out of a room in minutes. It's a slow, constant nudge toward cleaner air, riding on a fan you're running anyway.