1 / 6FlossJet FC5240 Cordless Water Flosser, 300 ml
The FlossJet FC5240 water flosser is a cordless oral irrigator with a 300 ml tank, four cleaning modes and five nozzle types. Its listed 20–115 PSI range and mode choices offer flexibility, while the claimed battery endurance and charging details are worth checking before relying on it for travel.
At a glance
- Four named modes include Gentle and Normal options, with the listing recommending Gentle for first-time users.
- The removable 300 ml tank is claimed to support up to two minutes of continuous use.
- The five listed nozzle types cover standard use, orthodontic cleaning, tongue scraping and periodontal use.
- The listing claims over 60 uses from a four-hour USB charge, but gives no definition of a use.
Reference price: £23.99
Price checked: 14 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Four modes provide options for adjusting the cleaning style.
- Five nozzle types include dedicated orthodontic, tongue-scraper and periodontal tips.
- The removable 300 ml tank is refillable and described as easy to clean.
Technical specifications
13 specifications| Brand | FlossJet |
|---|---|
| Model | FC5240 |
| Water pressure | 20–115 PSI |
|---|---|
| Jet size | 0.6mm |
| Nozzle rotation | 360° |
| Tank capacity | 300ml |
|---|---|
| Water-resistance rating | IPX7 |
| Charging | USB-chargeable |
|---|---|
| Claimed charge time | 4-hour charge |
| Claimed use per charge | over 60 uses per 4-hour charge |
| Claimed continuous use | 2 minutes |
| Claimed noise level | 58 decibels |
| Package dimensions and weight | 25 x 8.6 x 7.7 cm; 380 g |
|---|
What to know before buying
Listing details to confirm
The listing says a charge takes four hours and provides over 60 uses, but does not specify the conditions or duration of each use. Treat the battery figure as a listing claim rather than a guaranteed routine result.
Who is it for?
A good fit for
- People seeking a cordless water flosser with several mode choices.
- Users who want nozzle options for standard, orthodontic, tongue-cleaning or periodontal routines.
- Home or travel use where a removable 300 ml tank and USB charging suit the routine.
Less suited to
- Buyers who need a verified battery runtime or clearly specified charging connector and included power adapter.
Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
9% 9% - 3 stars
5% 5% - 2 stars
4% 4% - 1 star
7% 7%
The supplied material includes aggregate ratings but no customer comments or aspect-specific feedback. The overall rating distribution leans positive, while lower-star ratings are also present. This indicates varied overall impressions, but does not establish what customers liked or disliked about the tank, modes or battery claims.
Frequently asked questions
How many cleaning modes does the FC5240 have?
The listing names four: Gentle, Normal, Power and Pulse. It recommends starting with Gentle for first-time users.
What nozzle types are listed?
Five in total: two standard nozzles, one orthodontic nozzle, one tongue scraper and one periodontal nozzle.
How much water does the tank hold?
The removable tank is listed as 300ml. The description claims up to two minutes of continuous use.
What comes with the flosser?
The package description lists one irrigator, five nozzles, one charging cable and one manual. It specifies that an adapter is not included.
Alternative options
Smile Therapy Water flosser for Teeth, Removes Plaque & Debris, 5 Modes | 300ml Water Tank , Electric Flosser , 360° Nozzle , Electric Plaque Remover for Teeth , Oral Irrigator , Travel Case Included
£34.99
AquaSonic - Home Dental Center PRO | Brushing & Flossing Made Easy, Electric Toothbrush & Water Flosser, Power Toothbrush & Flosser - Whiter Teeth & Healthier Gums | Black Series Pro+Oral Irrigator
£49.95
Hangsun Water Flosser Cordless Oral Irrigator Rechargeable Dental Water Jet HOC700 for Teeth Braces with 300ML Water Tank and 6 Jet Tips for Travel & Home Use
£24.99
Cordless Water Flosser for Teeth, 300 ml Tank, 5 Modes, 4 Tips, IPX7, White | Rechargeable Oral Irrigator for Braces, 60-120 PSI, 1,800-2,000 Pulses/Min, 1300 mAh, USB-C, 360° Nozzle, Up to 30 Days
£21.99
COSLUS Water Dental Flosser for Teeth Cordless: Portable Oral Irrigator 300ML 5 Jet Tips Rechargeable Tooth Flosser Teeth Braces Pick IPX7 Waterproof Irrigation Cleaner for Travel Home
£23.59
MySmile LP221 Cordless Water Flossers for Teeth w/ UVC Light & OLED Display | 335ML 4 Modes Water Jet Dental Picks for Teeth Cleaning, Water Flossing, Gum & Braces Care, Home & Travel Use, Midnight Black
£58.99
Maynovia Cordless Water Flosser for Teeth, U-Shaped Tip, 300ml Tank, 5 Tips | Inside-out cleaning, inner tooth surfaces, 4 modes, 3 pressure levels, IPX7-rated, up to 30 days per charge, braces, travel
£39.99
Smile Therapy Water flosser for Teeth, Removes Plaque & Debris, 5 Modes | 300ml Water Tank , Electric Flosser , 360° Nozzle , Electric Plaque Remover for Teeth , Oral Irrigator , Travel Case Included
£34.99
SURFOU Cordless Oral Irrigator, 6 Jet Tips Dental Flosser for Teeth Braces | IPX7 Waterproof, 4 Modes, 300ML for Sensitive Gums, Portable for Travel, USB Rechargeable, 360° Rotating Nozzle
£19.90
Elfois Water Dental Flosser for Teeth, Cordless Oral Irrigator 9 Modes | Portable & Rechargeable, IPX7 Waterproof, 40-150 PSI with Digital Display, 180ml Tank for Home & Travel
£29.99
Hangsun Water Flossers for Teeth Cordless Oral Irrigator Dental Water Jet HOC760 Electric Tooth Flosser with 6 Jet Tips 300ML Water Tank USB Rechargeable for Travel and Home Use Black
£25.99
FlossJet Water Dental Flosser for Teeth Cordless with 300ML 4 Cleaning Modes 5 Jet Tips Portable Oral Irrigator USB-Powered Electric Flosser IPX7 Waterproof Irrigator Dental for Home and Travel Black
£18.69
