There are four levers that we have and that we ask New Zealanders to use. One is personal protective equipment (PPE), especially face masks—the best advice we have is that there are benefits in wearing a mask. We understand that there have been different views over time, but we also need to have some trust that officials will distil the best national and international information and provide that advice. Routine masks may not be a strong barrier against receiving the virus—which, at only a few microns, might make itself through the weave—but advice tells us that it is effective against transmitting particles, especially larger droplet-type infection. I also believe there is something useful in the discipline of using a mask—in that the purchasing, preparation, carrying, use, and storage every time we use it reminds us of the environment we are in and the other actions we must take. This is a good discipline.