I hope someone rich will start donating this to nurses and doctors since they are already running out of face mask. This got invented out of necessity due to the pandemic. It's protection is better than those surgical masks , fabric mask and other stuff people just DIY'd by themselves.
This mask is durable and reusable, All you need is to replace the filters every 150 hours and 25 minutes aka 6 days. Even without pandemic, you can use it as a protection from pollution.






