YES! It is "expensive", but has proven itself to be so effective; even during wildfire smoke.
There is the indicator for when each of the three filters are needing changed.
They also have masks that fit well to the face. I wear these all the time when I go outside. Presently wildfire smoke is present in different areas of the country, Canada. Pollution has always been a problem for me.
They also have a portable filter, as well as a model for cars.
This is an individual choice based on your research and resources. But as air quality gets worse, these seem to provide a great line of defense!
Let me know what you find.
Best regards!