Which materials can absorb odors effectively?

Fabrics, carpets, and porous surfaces are highly effective at absorbing odors due to their unique properties. These materials have a large surface area and a structure that allows them to trap and retain gaseous compounds that contribute to odors. The fibers in fabrics and carpets can also hold onto moisture, which can carry odor-causing particles, allowing for greater absorption.

In contrast, metals and plastics generally have non-porous surfaces. This means they do not absorb gases and odors in the same way. Similarly, while glass and wood can interact with some odors, wood is not as efficient an absorber as fabrics and porous materials, and glass typically does not retain odors at all due to its smooth, non-porous surface.

Concrete and bricks may also have some capacity for absorbing odors, but they are not as effective as the fibrous materials mentioned. Their porous nature can sometimes hold onto odors, but they may not capture and retain them as thoroughly or effectively as fabrics and carpets. Therefore, the most effective materials for odor absorption are indeed fabrics, carpets, and porous surfaces.