If you ordered a set of 4 anti-odour filter refills when you purchased your Tero, this first package will be sent at the same time as your second package containing your Tero device.
However, we cannot guarantee that these will arrive at exactly the same time, as they are two separate packages.
That said, your Tero device already includes a refill for the anti-odour filter, which will need to be changed after 3 to 4 months of use.