Tineco Floor ONE S9 Pro Review
Flash Drying & MHCBS™ Technology Tested
With the new Flash Dry system and MHCBS™ (Constant Fresh Water Flow), is this $899 cleaner worth the premium price tag? We put it to the test against spaghetti sauce and dried cereal.
⚙️ Quick Specs
- Drying: Flash Dry (2 Mins at 160°F)
- Tech: MHCBS™ (Always Clean Brush)
- Screen: 4-inch LCD with Animation
- Runtime: 40 Minutes
- Edge Cleaning: Dual-Sided (Flush)
- Self-Propelled: SmoothPower™ (Forward/Back)
1. Flash Dry: No More Odors
Older models took hours to air dry, leading to a mildew smell. The S9 Pro seals its base station and blasts the roller with 160°F hot air.
The Result: In exactly 2 minutes, the roller was bone dry and fluffy. It’s loud during this process (like a hair dryer), but it’s fast and effective.
2. Always Clean with MHCBS™
Most wet vacs just drag a dirty roller across the floor. Tineco's MHCBS technology constantly scrapes the dirty water off the roller and replaces it with fresh water 450 times per minute.
3. The Screen & Usability
The massive LCD screen shows you real-time tutorials. If the tank is empty, it plays a video showing you how to fill it. It feels incredibly premium and helpful for new users.
✔ The Pros
- Flash Dry prevents all odors.
- Cleans better than any competitor due to MHCBS.
- Extremely easy to steer (Self-Propelled).
✖ The Cons
- Expensive ($899).
- Clean water tank needs frequent refilling.
The Smart Home Tips Verdict
The Tineco Floor ONE S9 Pro is the best wet/dry vacuum of 2026.
It's pricey, but the self-cleaning features mean you spend zero time maintaining the machine. It just works.
Is it worth $200 more than Roborock? See how the Tineco S9 stacks up against the Dyad Pro 2 in our full comparison:
Tineco vs. Roborock vs. Dreame: 2026 Showdown →
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