Blood-stained materials must be stored in which type of container?

Blood-stained materials must be stored in which type of container?

• A. Airtight
• B. Sealed
• C. Breathable
• D. Waterproof

Answer: (C)

The key idea is moisture control to preserve biological evidence. Bloodstained materials can be damp, and sealing them in an airtight or sealed container traps moisture, which promotes mold growth and can degrade DNA. A breathable container—such as a paper bag or paper envelope—lets moisture escape as the item dries, reducing the risk of condensation and microbial activity and helping to preserve the integrity of the evidence. Waterproof or non-breathable options would behave similarly to airtight ones, continuing to trap moisture. That’s why breathable containers are the best choice.

The key idea is moisture control to preserve biological evidence. Bloodstained materials can be damp, and sealing them in an airtight or sealed container traps moisture, which promotes mold growth and can degrade DNA. A breathable container—such as a paper bag or paper envelope—lets moisture escape as the item dries, reducing the risk of condensation and microbial activity and helping to preserve the integrity of the evidence. Waterproof or non-breathable options would behave similarly to airtight ones, continuing to trap moisture. That’s why breathable containers are the best choice.