Could future astronauts use oysters as water filters? Here's why one company thinks so
用于水过滤的牡蛎栖息地原型在今年早些时候向公众展示了早期原型后，旨在最终进行太空发射。
This Levoit is the best smart air purifier I've tested (and it's on sale)
Levoit Vital 200S-P 是一款出色的智能空气净化器，配有可清洗的预过滤器，能够在一小时内清洁 1,800 平方英尺的面积。
