A short one, and the reviews are honest about it. Start on the lowest of the five pressure modes, put the tip in your mouth before you switch it on, lean over the sink and keep your lips almost closed. Nearly everyone soaks themselves once on day one and nobody mentions it again by week two.
5.0
(9,000)
Hetrios Water Flosser
The Hetrios Water Flosser: Elevate your oral hygiene with precision and ease.
The Hetrios Water Flosser is a cordless oral irrigator that delivers targeted pulsating water pressure to remove plaque and food debris from between teeth and below the gumline; areas your toothbrush simply can't reach.
Designed for daily use, it features a generous 300ml water tank that lasts a full session without refilling, 5 pressure modes for sensitive gums through to deep cleaning, and USB-C charging that lasts up to 50 days on a single charge.
Includes four specialist nozzles: standard jet, periodontal, orthodontic, and tongue cleaner; so it works whether you have healthy teeth, braces, implants, or crowns. IPX7 waterproof and Trusted by thousands of customers worldwide.
Colour
Offer
Water reaches what string floss walks past
A pulsating jet flushes the gaps between your teeth and the pocket just under the gumline — the places a brush head is too wide to enter and floss slides straight over.
The pattern in our reviews is hard to miss: people who already brush with a good electric toothbrush still find the flosser brings something up afterwards.
Hold the tip at the gumline, lean over the sink, close your lips, and work along one side then the other. Most people finish a full pass on two tank fills.
Transform Your Oral Hygiene Routine
The Hetrios Water Flosser enhances your dental care with features designed for effectiveness and ease.
Cordless Convenience
Enjoy the freedom of movement while you floss without being tethered to a power outlet.
Generous Water Tank
The 300ml water tank lasts a full session without the need to refill.
Multiple Nozzles
Includes specialized nozzles for various dental needs, from braces to implants.
Long-lasting Battery
USB-C charging lasts up to 50 days on a single charge.
Four nozzles, and what each one is actually for
Every Hetrios Water Flosser ships with four specialist tips. Twist to release, twist to lock — no tools.
Standard jet — your everyday tip. Use it on any of the five pressure modes for general cleaning between teeth.
Orthodontic — a tapered tip with a small brush at the end, made for working around brackets, wires and bands.
Periodontal — a soft, slim tip for guiding water gently into deeper pockets and around sensitive gumlines.
Tongue cleaner — a scoop-shaped tip for the surface of the tongue, where a lot of morning breath actually starts.
What 215 verified buyers actually said
93%
rated it 4 out of 5 or higher
72%
gave it the full 5 out of 5
100%
came from a verified purchase
Why Choose Hetrios Water Flosser?
The Hetrios Water Flosser stands out with its advanced features, delivering effective oral hygiene without the hassle of cords or frequent refills.
Hetrios Water Flosser
Others
Cordless Design
Generous Water Tank
USB-C Charging
Multiple Pressure Modes
Waterproof
Braces, bridges, implants and crowns
Fixed orthodontics are exactly where string floss gives up. Threading tape under a wire every night is the reason most people quietly stop doing it.
Water goes under and around hardware in one pass. Fit the orthodontic tip, drop to a lower pressure mode, and trace the gumline above and below the bracket.
The same applies to bridges, implants and crowns — no threading, no snapping, nothing to catch.
A 300 ml tank that empties properly
300 ml is enough for a full mouth in one or two fills, on any of the five pressure modes.
The part owners keep singling out is the drain. A suction pipe runs to the bottom of the tank, so when you are finished the flosser pulls the last of the water back out instead of leaving it to sit. Michele S., whose own photo appears further down this page, put it plainly: her previous brand had no such feature and was hard to empty.
IPX7 waterproof, so the whole handle can go in the shower or under the tap. USB-C charges it to around 50 days of daily use.
Photos from people who bought it
Every photo below was taken by a verified buyer in their own bathroom. 4.6 average from 215 reviews.
Martin O.
Verified Buyer
Even after using my electric toothbrush the water flosser still removed additional material from between my teeth. Very comfortable to use. Highly recommend
Michele S.
Verified Buyer
Stylish looking and very effective. Particularly like the suction pipe for draining the tank. My previous brand didnt have that feature and it was hard to completely empty.
Dana B.
Verified Buyer
I am delighted with my new water flosser Working perfectly with my electric toothbrush & programs are great
Oswald J.
Verified Buyer
This is a good flosser, quite a few settings but lacks a power setting, but overall it's very good
J H.
Verified Buyer
All good - works well
Questions the reviews kept raising
Answered from the actual review file, not a template.
I have never used a water flosser. Is there a learning curve?
I have never used a water flosser. Is there a learning curve?
Which nozzle should I be using?
Which nozzle should I be using?
Standard jet for everyday cleaning. Orthodontic if you wear braces. Periodontal for sensitive gums or deeper pockets. Tongue cleaner for the tongue surface. This was the single most common question in the reviews, which is why it now has its own section further up this page.
Does it replace string floss?
Does it replace string floss?
For most people it replaces the nightly floss they were skipping anyway, and several reviewers report their hygienist noticed the difference at the next appointment. If your dentist has told you to keep using tape for a specific reason, keep using it and add the flosser alongside.
How long does a charge last?
How long does a charge last?
Up to around 50 days of daily use, over USB-C. A charge-level indicator on the handle tells you where you are, so it does not die on you mid-session.
Can I use it with braces, implants, crowns or bridges?
Can I use it with braces, implants, crowns or bridges?
Yes. That is what the orthodontic tip is for, and it is one of the strongest use cases for water flossing generally, because there is nothing to thread and nothing to snap.
How often will I refill the 300 ml tank?
How often will I refill the 300 ml tank?
Most people get a full mouth out of one or two fills depending on the pressure mode. The tank also drains itself through the suction pipe when you are done, so it is not left holding water between sessions.
Is it waterproof?
Is it waterproof?
IPX7. The whole handle can be rinsed under the tap or used in the shower.
What if I do not get on with it?
What if I do not get on with it?
Send it back within 30 days for a full refund. Shipping is free and tracked in both directions.
Try Hetrios Water Flosser Risk-Free!
Experience the Hetrios Water Flosser with a 30-day money-back guarantee. Enjoy cleaner teeth and healthier gums, all backed by our commitment to quality.