I gave 10 packs of masks - that I paid for - to our local hospital and I'm not expecting anything upfront from them.
I think that selling protective equipment at the moment is a very sensitive issue, and that people are quite sensitive to those who make money by selling products like this. Since you say you paid for these masks, the question is why did you buy them at all unless you wanted to make money on them?
I ordered my masks directly from China and I can say that they are still quite expensive, and the kind you sell costs about $5 apiece. However, if you do not manage to sell them all together, I would be interested in buying at least 1 or 2 packages for my personal needs - EU location.