Abstract: The present disclosure generally relates to air filters expandable from a collapsed arrangement to an expanded, end-use arrangement and to methods of making, using, and installing such air filters. Some embodiments relate to an air filter having an expanded state and a collapsed state. The air filter includes a filter media assembly including (1) filter media including a plurality of pleats, (2) first and second opposing sides, and (3) first and second opposing ends. The air filter also includes a shape retention structure capable of being connected to at least a portion of the filter media assembly and capable of retention the filter media assembly in the expanded state. A spacing distance between adjacent pleats in the filter media is greater in the expanded state of the air filter than in the collapsed state of the air filter. In some embodiments, the air filter is an HVAC air filter.

Abstract: Systems and kits for decorating walls include a plurality of décor assemblies and a plurality of complementary fastening structures. The décor assemblies include a décor element and a releasable fastening structure providing first fastening elements. The complementary fastening structure includes a base, a pressure sensitive adhesive disposed on the base, and second fastening elements. The first fastening elements are releasably mateable with the second fastening elements to define a releasable fastening system. During use, a complementary fastening structure is releasably applied to a wall, and is connected to and supports one of the décor assemblies via the releasable fastening system. The releasable fastening system can comprise low profile hooks and loops, exhibiting relatively low holding power.

Abstract: Systems and kits for decorating walls include a plurality of décor assemblies and a plurality of complementary fastening structures. The décor assemblies include a décor element and a releasable fastening structure providing first fastening elements. The complementary fastening structure includes a base, a pressure sensitive adhesive disposed on the base, and second fastening elements. The first fastening elements are releasably mateable with the second fastening elements to define a releasable fastening system. During use, a complementary fastening structure is releasably applied to a wall, and is connected to and supports one of the décor assemblies via the releasable fastening system. The releasable fastening system can comprise low profile hooks and loops, exhibiting relatively low holding power.