The instrument is designed to test only liquid samples for now.

目前这个仪器只能用来测试液体样品。

The highly sensitive face mask is capable of measuring trace-level liquid samples of 0.3 microliters and gaseous samples at an ultra-low concentration of 0.1 femtograms per milliliter, according to the study published this week in the journal, Matter.

根据本周发表在期刊《Matter》上的一项研究，这款高灵敏度的口罩能对 0.3 微升的含有病毒蛋白质的液体做出反应，该口罩还能检出超低浓度（0.1fg/ml，即 1ml 空气中的 1000 万亿分之一克）的气体介质样本。