What type of vault generally provides a higher level of liquid protection?

An air seal vault is specifically designed to provide a high level of liquid protection due to its construction and sealing features. These vaults are typically made with airtight materials and are engineered to create a seal that prevents groundwater and other liquids from entering the vault. This is important in maintaining the integrity of the casket and its contents, especially in various environmental conditions. The air seal mechanism keeps the interior dry and protects against potential leaks, ensuring that the deceased remains undisturbed.

In contrast, other types of burial containers, such as wooden caskets or concrete vaults, may not offer the same level of protection against liquid intrusion. Wooden caskets are more porous and susceptible to decay and moisture. Although concrete vaults are durable, they may not be sealed in a way that effectively prevents liquid infiltration. Plastic liners provide some level of protection; however, they do not achieve the robust sealing capability that air seal vaults do. Overall, the design and function of air seal vaults make them the most effective choice for protecting against liquid intrusion in a burial situation.