4 ms·I think they mean of small plastic particles coming off the cheap device and polluting the air.by evolve2k 8y agoI think they mean of small plastic particles coming off the cheap device and polluting the air.Arn_Thor 8y agoNever heard of this. Also, how would it differ from any cheap plastics coming off any cheap fan made partly or wholly out of plastic?JofArnold 8y agoMore likely they mean volatile organic compounds (VOCs)ed_balls 8y agoAny source on that?