Necessity is the mother of invention… but iteration is the mother of innovation. The design brief for the face-mask has definitely changed a lot since March 2020 when the lockdown really began. You see, back in the first few months of the lockdown, the mask’s design brief was to be a better version of the N95 (a pretty achievable distinction if you ask me), but it’s different now. Face masks today need to compare with the face masks that launched last year. They need to be better...