bakgrundsabsorptionsfrågor
The term "bakgrundsabsor" appears to be a portmanteau, likely combining "bakgrund" which means "background" in Swedish, and "absor" which could relate to absorption or absorbent. Therefore, "bakgrundsabsor" likely refers to a background absorbent material or a substance used to absorb something in a background context.
In acoustics, a background absorbent material would be designed to reduce or eliminate unwanted ambient noise
In a more general sense, "bakgrundsabsor" could also refer to a material that absorbs spills or unwanted