musty smell from carpet 4

https://carpetpadmoldwire.evercolumn.com/posts/why-carpet-pad-mold-is-a-hidden-problem-you-can-t-ignore

There's a musty smell from carpet that hits you as soon as you walk into the room, a damp, earthy odor that seems to cling to everything. It's not overpowering, but persistent, like a forgotten basement or an old attic. The carpet itself feels slightly cool and moist underfoot, and the smell probably comes from trapped moisture and dust over time, a slow, insidious funk that's hard to completely get rid of.