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Black cordless water flosser with 300ml tank and 4 modes

Onlyone FC5090 Water Flosser Black 300ML 4 Modes

SKU CH-69XG-W27YR

A cordless water flosser with a 300ML tank, four pressure modes up to 50150 PSI, and a rechargeable battery lasting 30 days per charge

  • Rated speedWater Dental Flosser
  • Brush features300ML Lager Tank
  • Bristle typeWater Dental Flosser
  • Timer and extrasRechargeable
  • Tank capacity300 milliliters
  • Power typeBattery Powered
  • 300 ml tank completes a 60-second clean without refill
  • 4 pressure modes from 50 to 150 PSI suit sensitive gums
  • 30 days of daily use from a single 3-hour USB charge
  • Cordless waterproof design fits a standard toiletry bag
  • Includes 5 specialised jet tips for orthodontic and periodontal care

What the Onlyone FC5090 Is

The Onlyone FC5090 is a cordless water flosser built for daily oral care at home or on the move. It suits adults, teens and seniors who want a gentler alternative to string floss. The rechargeable battery and waterproof body make it practical for travel, dorm rooms or shared bathrooms.

Pressure Range That Decides Fit

Four adjustable modes deliver between 50 and 150 PSI with up to 1,500,2000 pulses per minute. Start on the lowest setting for sensitive or bleeding gums, then raise the pressure as comfort allows. Buyers who need a fixed single pressure or a higher maximum will not be served by this range.

Install and Common Pitfalls

Charge the unit for three hours via any 5 V USB port before first use; a full charge lasts about 30 days at one two-minute session daily. Fill the detachable 300 ML tank, select a mode and lean over the sink. The main issues are forgetting to recharge after a month, letting the tank sit unrinsed, and not swapping the jet tips every three months.

How it compares

Measured against everything we stock in Dental Care & Oral Hygiene, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 71% of the 2,485 comparable items (median $20.99).

Specifications

Product
Brand nameOnlyone
Model nameOnlyone FC5090
Part numberFC5360 Black
Product colorBlack
Performance
Rated speedWater Dental Flosser
Power
Power typeBattery Powered
Rechargeable battery4 modes water dental flosser pick,
Charging time24 h
Battery indicator4 modes water dental flosser pick,
Size & build
Bristle typeWater Dental Flosser
Tank capacity300 milliliters
CompositionPlastic
Product dimensions7.4 cm × 8.7 cm × 22.6 cm
Product weight0.39 kg
In the box
Accessories includedPortable, Waterproof, Cordless
More details
Team affiliation1 Piece

Questions about this item

What does 50-150 PSI mean for daily gum care?

The 50-150 PSI range delivers 1,500-2,000 pulses per minute, letting you start gently on sensitive gums and increase pressure as comfort improves for effective debris removal.

How does USB charging work without a proprietary adapter?

It charges from any 5V USB port, laptop, or power bank in 3 hours, providing approximately 30 days of use based on one 2-minute session per day.

Will the 300ml tank and dimensions fit my travel bag?

The 300ml detachable tank provides a full 60-second cleaning cycle, and the unit measures 7.4 cm x 8.7 cm x 22.6 cm weighing 0.39 kg, fitting standard toiletry bags.

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