Analyse @sshapiro_97's tweets
@sshapiro_97
| 159 followers
@mcgillu, the information you provided today to every single one of your staff and students is blatantly untrue. Procedural (i.e. surgical) masks do not block out anything smaller than large droplets. From the FDA: “While a surgical mask may be effective in blocking … (1/) https://t.co/XGmz3nuuKV