Gas Detection: Smell and Color
- Asphyxiant gas (chlorine, phosgene, etc.): Pungent or hay-like odor. White or yellowish in color.
- Blister gas (yperite/mustard gas, lewisite, etc.): Mustard or geranium-like odor. Colorless in gas form, reddish-brown in liquid form.
- Tear gas and sneezing gas: Odor resembles pepper, spicy mustard or bitter almond oil. White, yellow or colorless.
