![](https://www.theengineer.co.uk/media/qaybgnli/an-invisible-mask-wearable-air-curtain-treated-to-kill-viruses-blocks-99-8-of-aerosols-on-the-job.jpg)
Hard hat mounted air curtain adds layer of protection
This is the claim of University of Michigan start-up Taza Aya, whose technology could offer a new protection option for workers in industries where the transmission of respiratory disease is a concern. Third-party testing of Taza Aya's device is said …