The following guidance only applies in settings where UC Berkeley has mandated mask-wearing. Please see the masks page for current guidance.

Acceptable

Face coverings must cover both your nose and mouth and have no visible holes or openings.

Employees (and student employees while working) Students, invited guests and the general public
N95 (most protective) N95 (most protective)
KN95, KF94 (next most protective) KN95, KF94 (next most protective)
Surgical masks Surgical masks
Double-masking with a cloth face covering on top of a surgical mask to improve the fit Double-masking with a cloth face covering on top of a surgical mask to improve the fit
Cloth face coverings worn alone (Non-employees are encouraged to wear more effective face coverings, but are allowed to wear cloth face masks with tight ear straps that completely cover the mouth and nose)

Unacceptable

Employees (and student employees while working) Students, invited guests and the general public
Cloth face coverings worn alone (Students are encouraged to wear more effective face coverings, but are allowed to wear cloth face masks with tight ear straps that completely cover the mouth and nose)
Face coverings with exhalation valves or vents Face coverings with exhalation valves or vents
Counterfeit (fake) KN95 mask Counterfeit (fake) KN95 mask
Face shield without drapes when worn without an approved face covering Face shield without drapes when worn without an approved face covering
Scarf Scarf
Neck gaiter Neck gaiter
Ski mask Ski mask
Balaclava Balaclava
Bandana Bandana
Turtleneck Turtleneck
Collar Collar