PPE for teachers is a bit of a distraction. If you don't have full, proper PPE it's not a protection. What teachers need, to protect them, is for children to wear masks. At the very least in the corridors and at break, but ideally at other times too (as being done in so many other countries without detriment to the children - many children would actually feel less anxiety if they felt some steps were being taken - a lot of children are very anxious also about passing this disease on to their loved ones - masks would HELP their anxiety). It would reduce the risk hugely. This is proven fact.
Masks, especially re-usable ones, are relatively cheap compared to the cost of shutting and re-opening, shutting and re-opening, the childcare problems that will create, and the impact on child mental health.
I know quite a few people who work for universities in this country and in every single one they have mandated masks in their buildings.
In many states in the US masks are compulsory in any public space. We're actually being outdone by America in terms of how selfless their population are and how willing to undergo minor inconvenience to help others.
Also, the average life lost of someone who dies from covid is roughly 10-13 years. It's not insignificant. This attitude that "I'm alright, my kids are alright, why should I bother" is so utterly despicable, it makes me so sad this is my country.