4.9 
Old crawl space entry
Made of organic materials, mold will wear down this door, allowing moisture and humid air into the crawl space.
New crawl space entry
With it's airtight seal, moisture and humid air cannot leak into the crawl space.
Dirt floor
With the floor being dirt, it allows moisture and humid air into the crawl space where mold can grow.
After CleanSpace
With the CleanSpace, it seals off all moisture, and allows for an extra dry, clean space for safe storage.
