icon set of hazards and actions

1440 × 900

High Voltage Warning Sign — Red

960 × 720

Biohazard Warning Sign — Yellow, Vector Art

2000 × 1500

biohazard warning sign on metal wall

1600 × 1200

falling person warning sign

1152 × 864

biohazard warning on metal wall

1600 × 1200

Aperture Laboratories safety icons

1024 × 768

Electrical Hazard Sign — White

1920 × 1200

Biohazard Symbol — Yellow, Warning, Vector Art, Black

2100 × 2000

Biohazard Symbol — Yellow, Warning, Vector Art

1600 × 1200

Biohazard Symbol — Yellow, Ominous

1920 × 1200

Biohazard Symbol — Green, Warning, Vector Art, Splatter

1200 × 750