Pollution prevention

Protective gear

Gas mask

Toxic air

Chemical hazard

Safety gear

Respirator protection

Respiratory protection

Poisoned atmosphere

Chemical haze

Mask on face

Respirator mask

Protection gear

Hazardous environment

Gas masks

Personal protection

Chemical protection

Toxic fumes

Toxic environments

Respiratory equipment

Figure in protective gear

Breathing protection

Industrial pollution

Urban setting

Urban warrior

Masked figure