I recently had my carpets professionally cleaned, and spent a little while researching the cost and effectiveness of various methods. But now I'm wondering about the environmental impact as well. There seem to be two main methods of professional carpet cleaning:
- Steam cleaning, as provided by many commercial services
- Dry cleaning, as provided by Chemdry (and perhaps others)
And Wikipedia mentions a few other methods that are less common.
Chemdry claims to be more environmentally friendly than "traditional" steam cleaning. But the name Chemdry alone makes me weary of this claim.
How can I choose the most sustainable and environmentally-friendly method to clean my carpets next time?