

💧 Floss smarter, not harder — your on-the-go secret to a flawless smile!
The COSLUS Water Dental Flosser C20(F5020E) is a portable, cordless oral irrigator featuring a large 300ml water tank, advanced dual-thread water pulse technology delivering up to 1800 pulses per minute, and a rechargeable battery lasting up to 30 days per charge. Its IPX7 waterproof rating and multiple pressure modes make it ideal for personalized, effective, and convenient teeth cleaning at home or on the move.






















| ASIN | B0BG52SJ5N |
| Additional Features | Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Portable, Lightweight, Noiseless, Non-Slip Grip, Rechargeable, Battery Indicator, Rotatable Tip |
| Best Sellers Rank | #436 in Health & Household ( See Top 100 in Health & Household ) #2 in Power Dental Flossers |
| Brand | COSLUS |
| Brand Name | COSLUS |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 46,005 Reviews |
| Item Dimensions | 9.05 x 3.54 x 2.36 inches |
| Item Height | 2.36 inches |
| Manufacturer | COSLUS |
| Manufacturer Warranty Description | 1-year warranty, 24-hour after-sales service, Free 30-day refund / replacement |
| Material Type | Plastic |
| Model Name | C20(F5020E) |
| Model Number | C20(F5020E) |
| Power Source | Battery Powered |
| Product Benefits | Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque, Removes Teeth Stains, Whiten Teeth Product Benefits Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque, Removes Teeth Stains, Whiten Teeth See more |
| Recommended Uses For Product | Brace Cleaning, Daily Cleaning, Deep Cleaning, Home, Massage Gum, Office, Teeth Cleaning, Travel, Whiten Teeth |
| Special Feature | Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Portable, Lightweight, Noiseless, Non-Slip Grip, Rechargeable, Battery Indicator, Rotatable Tip Special Feature Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Portable, Lightweight, Noiseless, Non-Slip Grip, Rechargeable, Battery Indicator, Rotatable Tip See more |
| Specification Met | BPA free, ETL, FCC, IPX7 |
| Tank Volume | 300 Milliliters |
| Target Use Body Part | Teeth |
| Unit Count | 1.0 Count |
T**F
Great Portable Water Flosser: Powerful and Travel-Friendly
I’ve been using the COSLUS Water Dental Flosser for a few weeks now, and I’m really impressed with its performance. The water pressure is strong enough to thoroughly clean between my teeth and along the gum line, yet gentle when using the lower settings. My mouth feels noticeably cleaner after each use compared to regular string floss. The 300ML water tank is a great size; it holds enough water for a full cleaning without needing constant refills. I also love that it’s cordless and rechargeable, making it perfect for travel or small bathrooms. The battery life is excellent; one charge lasts me well over a week of daily use. Another big plus is the IPX7 waterproof design. I can safely use it in the shower without worrying about water damage. The unit feels sturdy, well-built, and easy to handle. Overall, this is a great value for the price. If you’re looking for an effective, portable, and easy-to-use water flosser, I highly recommend.
C**D
Good unit, easy to use and seems effective!
The device is very easy to operate. I fill the reservoir twice. Once for the bottoms and once for the tops. I have been using it on the children's mode to get my gums accustomed to the process. It's very easy to change modes. I remove the wand from the unit after I use it. One of the reviews I had read said someone had knocked his unit off the counter and the wand had broken off when It fell. The unit operates quietly and is easy to fill. I dry it off after use and leave the fill plug open and separate the unit to hasten the drying process. I am pleased with the product. It was an easy process to register the unit for the 2yr guarantee. The unit was very easy to charge.
A**R
Great flosser, would recommend
Really good water flosser. Hard to get to the inside to clean thoroughly but still does its job well. Durable as I've had this for over a year, noise level isnt too bad either, great dpeed level options as well, and holds the right amount of water to cover all my teeth.
Y**E
Very durable
I have been using this product for months now, on daily basis, 3 times a day. It works like magic. The charge last for weeks and it doesn’t leak or whatsoever. It is not loud but not very quiet as well. Very comfortable to the sensitive gum or teeth hence it has levels for its tensity. It is worth the month and works great for those who wear braces because it cleans the teeth pretty well.
K**L
The best tooth/gum cleaner ever
Love love love it I couldn’t believe how well this water pick works. I was about to buy one from the dentist cause she recommended it to me but after hearing that it was $115 I was like well I don’t need it that bad. Anyways I look on Amazon and I got this bad boy for like $25 and it works really good. If you want the cleanest gums and teeth you’ve ever had (aside for when you get a cleaning at the dentist) buy one of these affordable water picks
D**D
Great overall product!
Great product! Have been using this for years now. Have one for me, one for my wife, my niece wanted one so got her one too. Could be a bit more flexible in terms of intensity, but the different modes are nice and I like the more intense mode. Helps keep gums clean and healthy, gets stuff from between teeth easily, and not too noisy. Reservoir is the right size for one person to do both top and bottom, inside and out. Battery life is also very good. Seems like months between charges, although I haven’t actually measured it.
J**M
Just add water
Was recommended by my dental hygienist to stop using dental picks and use a water flosser. I never used one before but after watching videos on YouTube I decided to try it. I’m pleasantly impressed and glad I got it. It comes with all you need except for the water. It is very easy to use and works well. It has different settings and is recommended to start out with the lowest setting which works good as well. It has two places to fill with water and has a usb charger cord but not the charger block to plug it in.
D**E
Buy the extended warranty
It works *very* well, but battery dies after a few months. I really loved the tank size and the power of the water pump, but after 4 months, the battery would only hold enough charge to clean half of my mouth before dying, rendering the product itself unusable. It started out with great battery life, only needing to recharge once a week at most, but the battery slowly but steadily started losing endurance. The last few weeks of using it, I had to charge it daily just to run long enough to empty the tank. The final few days, it only lasted long enough to get halfway through the tank before dying. I stopped using it at that point and bought a different, cheaper one. I've been using that one for the past year and a half, and it's just now getting to where I need to charge it every 4-5 days. I would be hesitant to recommend it, *unless* you purchase the longest offered extended protection plan for a few dollars, with the expectation of regularly filing claims with it. In that case, I would highly recommend it! It's a great little machine, aside from a poor quality battery that is not replaceable. It would be better if it charged from a standard USB C connection, but this company isn't unique in requiring a proprietary connector from my experience.
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1 month ago
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