IUI - what does his sperm need to be at

Brittony
So, we were told beginning of February my husband had an extremely low sperm count and we weren't candidates for an <a href="https://glowing.com/glow-fertility-program">IUI</a>. After more tests, all his levels came back normal and he had no varicoceles. So, they have no explanation. The urologist suggested we do a second semen analysis, which we did Thursday and find out the results Monday. Does anyone know what his count needs to be for us to be considered for an <a href="https://glowing.com/glow-fertility-program">IUI</a>?!