求翻译：采用食品级液体硅胶制为鼻头。无毒无味，不含有杂质且柔软，无锐角，不会对婴儿产生伤害。以德国PC进口原料制造为防尘盖，不仅可以阻碍灰尘，而且有效的防止细菌对鼻头造成的污染，安全卫生。是什么意思？

Use food grade liquid silicone nose. Nonpoisonous and tasteless, does not contain impurities and soft, no sharp angles, no injuries on the baby. Germany PC imported raw material manufacture as a dust cover, not only can prevent dust and effectively prevent pollution caused by bacteria on the nose, s

Use food grade liquid silicone nose. Nonpoisonous and tasteless, does not contain impurities and soft, no sharp%