Yes, using standard KN95 masks. It is even more important to use good mic technique in this case. You'll likely need to manage the sound system EQ for your channel well to ensure best articulation and avoid muddiness. I remember Steve Z-A managed to get a headset mic *under* a (cloth, IIRC) mask at one point. I don't recall it being a significant improvement, because it accentuated the proximity effect by being within such a tight space and was a bit fussy to manage.

If not strictly required, you may want to consider specifically exempting the caller from the mask requirement while on mic. If distanced and the venue has good ventilation, etc. the risk from one individual speaking is relatively low and the improvement in sound is significant to the event's success. This is a judgment call on degrees of risk but if one has concluded that getting together for this purpose is advisable then you may as well ensure folks are able to hear the caller as well as the music to best enjoy it.

Good luck!

Don