Biohazard symbol on black background

1280 × 1024

Metallic biohazard symbol

1740 × 1200

Metallic biohazard symbol

1920 × 1200

silver biohazard symbol

1024 × 768

Biohazard symbol on dark background

1280 × 800

Biohazard warning symbol

1440 × 900

biohazard symbol on dark background

1680 × 1050

Biohazard warning sign

1024 × 768

biohazard warning sign

1028 × 1024

Biohazard warning graphic

800 × 600

Biohazard symbol on textured background

1280 × 800

Biohazard warning sign

1920 × 1280