CleanFiber wants to turn millions of tons of cardboard boxes into insulation

The startup has raised $28 million to help fund a nationwide expansion of its cardboard-based cellulose building insulation. © 2024 TechCrunch. All rights reserved. For personal use only.

CleanFiber wants to turn millions of tons of cardboard boxes into insulation

The startup has raised $28 million to help fund a nationwide expansion of its cardboard-based cellulose building insulation.

© 2024 TechCrunch. All rights reserved. For personal use only.