What size room will Briiv clear?

You might find it best to alter your usage and see what works best for you!

An original Briiv unit can filter all of the air in a 4m x 4m room in an hour on level 4, and Briiv 2 can clean the air in a 4m x 4m room in 21 minutes on level 4. 

You may find this speed is too loud or that you'd rather have the Briiv on a lower speed more consistently.