pyrogen-free

例句：

1. 1.The product is pyrogen-free, which means it does not contain any harmful substances.
   该产品是无致热原的，意味着它不含有任何有害物质。
2. 2.The hospital has implemented a policy to ensure all medical equipment is pyrogen-free.
   医院实施了一项政策，确保所有医疗设备都是无致热原的。
3. 3.The new formula is pyrogen-free, which makes it safe for children to consume.
   新配方是无致热原的，这使得它对孩子来说是安全的。