What items can be immersed in water-based cleaning solutions and are possibly restorable?

The choice regarding porous Type 1 items being immersible in water-based cleaning solutions refers to materials that can absorb moisture without significant risk of permanent damage. These items are often made of softer, denser materials that can withstand some level of water exposure, making them potentially restorable through careful cleaning processes.

Porous Type 1 materials typically include textiles, uncoated papers, or other fabric-like substances that can be treated without compromising their structural integrity as long as they are handled properly. When immersed in suitable cleaning solutions, these items may be effectively cleaned of contaminants without losing their usability or aesthetic appeal.

In contrast, porous Type 2 items generally have different characteristics and may be more sensitive to moisture, leading to potential degradation. Non-porous items usually resist water and can often be cleaned in various solutions, but they do not share the same restoration context as porous items. Electronics, on the other hand, are typically at high risk when exposed to liquids and may suffer irreversible damage even from just moisture exposure. Hence, the focus on porous Type 1 items highlights their capacity for restoration when properly treated.