According to New York asbestos regulations, what is the minimum length required for an airlock?

In New York asbestos regulations, the minimum length required for an airlock is established to ensure the safety and efficiency of asbestos abatement processes. An airlock serves as a decontamination area that helps to control the movement of workers and materials between an uncontaminated space and a contaminated area.

The requirement for a minimum length of 3 feet allows for adequate space to facilitate the transition and properly contain asbestos fibers, reducing the risk of cross-contamination and exposure. This length not only provides a physical buffer but also enables workers to properly don and doff personal protective equipment as well as perform necessary cleaning procedures before leaving the contaminated space.

The other options do not align with these regulations, as they either provide insufficient space for effective decontamination practices or exceed typical standards without a clear reason.