Alvas Glassless Mirrors are UL (Fire Retardant) rated for safety:
R7754 Building Units
36 MO

Surface Burning Characteristics
Flame Spread:
Face 15
Back 40
Core 25

Smoke Developed:
Face 85
Back 100
Core 100-45

Other Glassless Mirrors that do not have such ratings should not be placed in public facilities, as they present a fire hazard.