| face mask | 14.22 | Goggles and face masks. | ||
| dust mask | 2.76 | A dust mask is not adequate to block vapors. | ||
| paper mask | 1.12 | Passers-by were wearing paper masks. | ||
| rubber mask | 1.12 | We are given rubber masks. | ||
| iron mask | 0.92 | The tree in the iron mask? | ||
| gauze mask | 0.53 | Some people wore gauze masks. | ||
| hockey mask | 0.46 | Goalies might start wearing hockey masks. | ||
| cloth mask | 0.39 | Like him, they wore brown uniforms and gray cloth masks with holes cut out for their eyes. | ||
| filter mask | 0.39 | Workers wore heavy, elaborate filter masks. | ||
| goalie mask | 0.39 | The conversation turns to goalie masks. | ||
| air mask | 0.33 | Put on a jumpsuit and an air mask. | ||
| leather mask | 0.33 | Inside the car was a man in a black leather mask. | ||
| respirator mask | 0.33 | They included grout, three bags of some other powder and a respirator mask. | ||
| ape mask | 0.26 | Usually accompanied by men in ape masks. | ||
| fright mask | 0.26 | Like the video store clerk, the predator in a fright mask and black cloak knows his horror movies. |