D-piece Reminder For ToxCO

Why does my ToxCO show an orange b in with a D-piece pointing to it?

ToxCO-d-pieceEach D-piece needs replacing every 30 days, after this period, please dispose of the previous D-piece properly and replace it with a new one.

If the problem persists or has not been resolved by the information provided above, please contact Bedfont or your local distributor for more advice.