Let's be honest—most people don't floss. String floss is awkward, time-consuming, and easy to skip. Water flossers change that equation entirely.

A pulsating stream of water blasts away food particles and bacteria from between teeth and below the gumline. It's faster than string floss, easier to use, and studies show it's just as effective—sometimes more so for people with braces, implants, or gum disease.

If traditional flossing isn't happening, a water flosser might be the solution.

Why Water Flossers Work

The Science

Water flossers use pulsating water pressure to:

  • Dislodge food particles between teeth
  • Flush bacteria from periodontal pockets
  • Massage and stimulate gum tissue
  • Reach areas string floss can't access

Research shows water flossers are 29% more effective than string floss at removing plaque and 51% more effective at reducing gingivitis.

Who Benefits Most

  • People who don't floss regularly (most people)
  • Braces wearers (impossible to string floss properly)
  • Those with dental implants, bridges, or crowns
  • People with gum disease or deep periodontal pockets
  • Anyone with dexterity issues
A water flosser you actually use beats string floss sitting in a drawer.

Top Water Flossers for 2026

Best Overall: Waterpik Aquarius WP-660

The gold standard in water flossing.

  • Pressure: 10 settings (10-100 PSI)
  • Reservoir: 90 seconds of use
  • Tips: 7 included (classic, orthodontic, plaque seeker, etc.)
  • Features: Massage mode, pause button
  • Price: ~$70

Waterpik invented the category and still leads it. The Aquarius offers the best combination of power, capacity, and tip variety.

Best Cordless: Waterpik Cordless Advanced WP-580

Full power without the cord.

  • Pressure: 3 settings (45-75 PSI)
  • Reservoir: 45 seconds of use
  • Tips: 4 included
  • Battery: Rechargeable, 1 week per charge
  • Price: ~$80

Magnetic charging, waterproof for shower use, and surprisingly powerful for a cordless unit.

Best Value: Waterpik WP-462 Cordless Plus

Affordable cordless option.

  • Pressure: 2 settings
  • Reservoir: 45 seconds of use
  • Tips: 4 included
  • Battery: AA batteries
  • Price: ~$40

Less powerful than premium models but effective for daily use. Battery operation means no charging hassle.

Best for Travel: Philips Sonicare Power Flosser 3000

Compact with innovative technology.

  • Pressure: 3 settings
  • Technology: Quad Stream (4 water jets)
  • Reservoir: 15 seconds (requires refilling)
  • Battery: Rechargeable
  • Price: ~$80

The Quad Stream technology cleans faster, compensating for the small reservoir. Very portable.

Best Budget: H2ofloss HF-8

Countertop power at budget price.

  • Pressure: 5 settings
  • Reservoir: 800ml (90+ seconds)
  • Tips: 12 included
  • Features: Large reservoir, quiet operation
  • Price: ~$35

Surprisingly capable for the price. The large reservoir means no mid-session refills.

Water Flosser Comparison

FlosserTypePressureReservoirPrice
Waterpik AquariusCountertop10-100 PSI90 sec$70
Waterpik WP-580Cordless45-75 PSI45 sec$80
Waterpik WP-462Cordless2 settings45 sec$40
Philips Power FlosserCordless3 settings15 sec$80
H2ofloss HF-8Countertop5 settings90+ sec$35

Countertop vs Cordless

Countertop Water Flossers

Pros:

  • More powerful (higher PSI range)
  • Larger reservoir (no refilling)
  • More pressure settings
  • Often more durable

Cons:

  • Takes counter space
  • Not portable
  • Cord management

Cordless Water Flossers

Pros:

  • Portable and travel-friendly
  • No counter clutter
  • Can use in shower
  • Easier storage

Cons:

  • Smaller reservoir (may need refilling)
  • Less powerful
  • Battery charging/replacement
Choose countertop for maximum effectiveness at home. Choose cordless for travel, small bathrooms, or shower use.

How to Use a Water Flosser

Basic Technique

  1. Fill reservoir with lukewarm water
  2. Start on lowest pressure (increase as comfortable)
  3. Lean over sink and place tip in mouth before turning on
  4. Close lips slightly to prevent splashing
  5. Trace gumline pausing briefly between each tooth
  6. Work systematically around entire mouth
  7. Total time: 1-2 minutes

Tips for Best Results

  • Start with low pressure—gums may be sensitive initially
  • Aim at 90-degree angle to gumline
  • Don't forget back teeth and tongue-side surfaces
  • Use warm water for comfort
  • Clean reservoir weekly to prevent mold

Common Mistakes

  • Starting on high pressure (causes discomfort)
  • Moving too quickly (not cleaning thoroughly)
  • Skipping areas (be systematic)
  • Not emptying reservoir (bacteria growth)

Water Flosser vs String Floss

FactorWater FlosserString Floss
EffectivenessExcellentExcellent
Ease of useEasyModerate
Time required1-2 minutes2-3 minutes
Braces-friendlyYesDifficult
Implant-safeYesYes
TravelCordless optionsVery portable
Cost$35-100 + tips$3-5/pack
ComplianceHigherLower

Do You Still Need String Floss?

For most people, water flossing alone is sufficient. However, string floss may be better for:

  • Very tight contacts between teeth
  • Removing sticky plaque
  • When traveling without a water flosser

Many dentists recommend using both for optimal results.

Specialty Tips Explained

Classic Tip

Standard tip for general use. Works for most people.

Orthodontic Tip

Tapered brush for cleaning around braces, wires, and brackets.

Plaque Seeker Tip

Three thin bristles for implants, crowns, and bridges.

Pik Pocket Tip

Soft rubber tip for deep periodontal pockets and sensitive gums.

Tongue Cleaner

Spoon-shaped tip for removing bacteria from tongue surface.

Pairing with Electric Toothbrush

For complete oral care:

  1. Water floss first to remove debris
  2. Brush with electric toothbrush for 2 minutes
  3. Optional: Mouthwash for additional bacteria control

See our electric toothbrush guide for brush recommendations.

Got Questions About Water Flossers? Let's Clear Things Up.

Can water flossers replace string floss?

For most people, yes. Studies show water flossers are equally or more effective than string floss for plaque removal and gum health. The American Dental Association accepts water flossers as an effective alternative. However, some dentists still recommend string floss for very tight tooth contacts.

Are water flossers safe for gums?

Yes, when used correctly. Start on low pressure and increase gradually. Initial bleeding is normal if you haven't been flossing—it should stop within 1-2 weeks of regular use. If bleeding persists, see your dentist.

How often should I water floss?

Once daily is sufficient for most people. Floss before brushing for best results. Some people with gum disease may benefit from twice-daily use.

Can I use mouthwash in my water flosser?

Most manufacturers recommend water only. Mouthwash can damage seals and internal components. If you want mouthwash benefits, use it separately after water flossing.

How long do water flossers last?

Quality water flossers typically last 3-5 years. Cordless models may have shorter lifespans due to battery degradation. Replace tips every 3-6 months or when worn.


A water flosser makes interdental cleaning easy enough that you'll actually do it. The Waterpik Aquarius offers the best countertop experience, while the Waterpik Cordless Advanced is ideal for portability. Pair with a quality electric toothbrush for complete oral care.