The app says it’s filtering, and the device is. But she’s not wearing her respirator properly so she smells smoke.
And since she’s wearing it improperly (and was probably not fit tested) the mask isn’t accomplishing what she wants.
This is basically a video that says “I can afford a Dyson zone and have no idea what I’m doing.”
https://knowyourmeme.com/memes/events/the-verges-gaming-pc-b...
There is not seal on the Dyson device. It is impossible to "wear it properly" in a way that prevents non-filtered air from getting into your lungs.