Philips Sonicare Power Flosser 7000 (HX3911/42). Countertop water flosser that plugs into the wall, so there's no battery to charge. It has 4 modes, 10 intensity settings, a 600ml tank and Quad Stream technology for cleaning between teeth and below the gumline.
Who it's for. Anyone upgrading from string floss or a basic irrigator who wants extra modes, pressures and guidance. Good with braces, implants and bridges. Sensitive gums: start on the lowest pressure.
In the box: Power Flosser 7000 HX3911/42, 2 × F1 Standard nozzles, 2 × F3 Quad Stream nozzles and a nozzle storage case.
⭐⭐⭐⭐⭐ "The ordering process was simple and easy. We were in a rush buying the item and everything was smooth helping us get it before our trip. Totally satisfied" — THANH S., Ho Chi Minh City
Philips 90-day money-back guarantee. Philips offers a 90-day money-back guarantee on eligible NZ purchases of this model (Power Flosser (corded)). See Philips NZ terms.
Quad Stream plaque clean below the gumline
Philips Quad Stream tips send multiple streams into pockets below the gumline. Aim at ~90° to the gumline, glide slowly, pause between teeth. Lean over the sink until you learn the splash angle.
Philips 90-day money-back guarantee
Philips New Zealand offers a 90-day money-back guarantee on eligible products, including the Power Flosser (corded) (HX3911/42), bought from an NZ retail or online store between 1 Jan 2025 and 31 Dec 2026.
- How to claim: use it for at least 30 days. If you’re not satisfied, submit Philips’ online claim form within 90 days of purchase, then post the product back to Philips in its original packaging with your Claim ID.
- Key conditions: NZ residents aged 18+. Keep your receipt and the original packaging. You pay return postage, and refunds go by bank transfer in about 3–4 weeks. Accessories, trade seconds and auction-site purchases are excluded. Claims close 30 April 2027.
- Your rights under the Consumer Guarantees Act aren’t affected.
Modes, pressures and pacing
- 4 modes: Clean, Deep Clean, Sensitive and Gum Care
- 10 intensity settings. Philips says to start on the lowest setting and work up over a few weeks
- Clean and Gum Care pause every 30 seconds so you know when to move to the next part of your mouth
Tank and power
- Fill with lukewarm water; empty after use and air-dry the port
- 600ml tank with a flip lid
- Countertop base plugs into the wall (100–240V)
- Magnetic handle dock switches the handle off when you put it back
Nozzle care
- Rinse nozzles after each use; don’t boil or dishwasher
- Replace nozzles about every 6 months
- Only F1 / F2 / F3 Power Flosser nozzles fit this family
See it up close
Full specs
- Model: HX3911/42 · Power Flosser 7000
- Type: countertop water flosser (mains powered)
- Technology: Quad Stream · 4 modes · 10 intensities · 600ml tank
- Nozzles: F1 / F2 / F3 family
- Warranty: Philips 2-year limited warranty
FAQ
Genuine Philips? Yes.
Vs Power Flosser 3000? Both are countertop models. The Power Flosser 3000 (HX3711) has fewer modes. If you'd rather have no cord, see the Cordless Power Flosser 3000 (HX3826).
Replaces brushing? No — use after brushing.
Feature claims aligned with Philips Sonicare Power Flosser range (philips.co.nz).