Which shipping container should I choose for delivery of donor sperm?
Donor sperm is shipped inside a nitrogen tank. This allows the specimen to stay frozen and alive for a couple of days. The small nitrogen tank allows sperm to last for 7 days, and the large nitrogen allows sperm to last for 12 days. Remember the day of shipping is day one for durability of the sperm straws; not the day you receive it.
Read more about the shipping and delivery of donor sperm here.