There is no clear evidence that shows that masking in schools at this point in the pandemic is make a big enough difference for the cedcs current guide lines. There's not really data that they're going to work much better in a school setting, particularly how our kids wear masks. So it's not really appropriate to mandate this. For those high risk individuals that want the heightened protection, or live with some one that is high risk, they can wear a higher quality mask that fits tightly to the face. They can learn how to fit tested and and you to make sure it's tight.