Independent testing
How much independent testing exists for each carpet cleaner
Of the 6 carpet cleaners we track, 1 have been physically measured by at least one independent lab. Below is every one, ordered by how much independent hands-on evidence stands behind it — densest first.
A coverage record, not a ranking of which is best.
| Product | Independent labs | Metrics measured | Outlets on record |
|---|---|---|---|
| ProHeat 2X Revolution Pet Pro Carpet Cleaner (3587) | 2 | 4 | 2 |
| Big Green Machine Professional Carpet Cleaner (86T3) | 0 | 0 | 2 |
| Little Green HydroSteam Pet Portable Carpet Cleaner (3618) | 0 | 0 | 1 |
| SmartWash Pet Complete Automatic Carpet Cleaner (FH53000V) | 0 | 0 | 1 |
| SpotClean Pro Portable Carpet Cleaner (3624) | 0 | 0 | 1 |
| StainStriker Portable Carpet & Furniture Cleaner (PX201) | 0 | 0 | 1 |
Each figure is a count of what independent testers actually did — how we count. A low count means little independent evidence has been gathered yet, never that a product is worse. See also the Carpet Cleaners buying guide and the reviewers we cite.