Portable Smoke Purifier, 1 Count USB Rechargeable Smoke Filter Fan with Replaceable Activated Carbon Filter Cotton, Mini Fan Range Hood for Indoor Kitchen

Excellent for smoking, needs to be on high speed and plug into usb,I use my laptop

Not what it’s made out to be , most smoke goes round the back, charge doesn’t last long so case of leaving it plugged in all the time. Instructions not clear how to remove front to change filter