What does "porous" refer to concerning items in a salon?

The term "porous" in the context of items in a salon refers to materials that have small holes or spaces that allow liquids or gases to be absorbed or pass through them. This characteristic makes porous items susceptible to retaining moisture, which can harbor bacteria and other pathogens, making them less suitable for repeated use in a salon setting for services like eyelash extensions.

By contrast, items that can be disinfected easily typically feature non-porous surfaces, such as plastic or stainless steel, which can be cleaned and sanitized effectively. Items that cannot be reused usually pertain to disposable products, which may or may not be porous depending on their material, but the key focus of the question is on the ability to absorb liquids. Additionally, while items made from plastic can be non-porous or porous, the defining nature of porosity applies more broadly to the material's capacity to absorb rather than its composition alone.