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✨ Elevate your smile game with pro-level flossing power 💧
The COSLUS C20 Water Dental Flosser is a portable, rechargeable oral irrigator featuring advanced dual-thread water pulse technology delivering up to 1800 high-pressure pulses per minute. It boasts a large 300ml BPA-free tank, 30-day battery life, IPX7 waterproof rating, and multiple customizable modes for gentle yet effective plaque removal. Designed for travel and daily use, it combines durability with ergonomic comfort to promote superior gum health and a cleaner, brighter smile.






















| ASIN | B0BG52SJ5N |
| ASIN | B0BG52SJ5N |
| Additional Features | Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Portable, Lightweight, Noiseless, Non-Slip Grip, Rechargeable, Battery Indicator, Rotatable Tip |
| Batteries | 1 AA batteries required. (included) |
| Best Sellers Rank | #189 in Health & Household ( See Top 100 in Health & Household ) #1 in Power Dental Flossers |
| Brand Name | COSLUS |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (49,374) |
| Item Dimensions | 9.05 x 3.54 x 2.36 inches |
| Item model number | C20 |
| Manufacturer | COSLUS |
| Manufacturer | COSLUS |
| Manufacturer Part Number | C20(F5020E) |
| Manufacturer Warranty Description | 1-year warranty, 24-hour after-sales service, Free 30-day refund / replacement |
| Material Type | Plastic |
| Model Name | C20 |
| Model Number | C20 |
| Power Source | Battery Powered |
| Product Benefits | Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque, Removes Teeth Stains, Whiten Teeth |
| Product Dimensions | 9.05 x 3.54 x 2.36 inches; 14.89 ounces |
| Recommended Uses For Product | Brace Cleaning, Daily Cleaning, Deep Cleaning, Home, Massage Gum, Office, Teeth Cleaning, Travel, Whiten Teeth |
| Specification Met | BPA free, ETL, FCC, IPX7 |
| Tank Volume | 300 Milliliters |
| Target Use Body Part | Teeth |
| Unit Count | 1.0 Count |
A**S
Water Flossing Away
Works well and easy to use!! I like that it has many different attachments and the settings are easy to use. Love the product and the price!!!! The water pressure that this has, has impressed me. I am glad that I made this purchase.
T**H
Take care of your teeth!!!
10/10 !!! This is the best water flosser EVER!!!! Now beware, this thing is strong and will knock out any fillings, plaque, unwanted particles that are stuck in your gums/teeth. I love the different pieces it comes with. It’s light weight and easy to travel with. The battery stays charged for weeks.
G**Y
Not bad for the price.
For the quick review, this is fine especially for the price I got it at. Not the best I've used, but not the worst either. I'd prefer to give it 3.5 stars, but it's closer to 4 than 3 for me. Biggest issue is the nozzles don't seat firmly, so they tend to spin in your mouth and you have to adjust as you're using it to floss. They won't fall out or anything, but it takes an adjustment to learn to use if you're switching from a Waterpik. The nozzles are definitely cheap plastic, but they work. Doesn't leak, battery life is good, and it's relatively quiet for a water flosser, though there's no mistaking the sound. Haven't been to see a dentist since I got it, so I don't know about the claims on how clean it keeps your teeth, but it does a fair job at getting food particles from between your teeth out. Overall, it's fine. I don't regret the purchase, but I don't know if I'll buy it again once this one wears out. Now for the long review. Before this I've only used Waterpik flossers, so I'll be comparing them a lot. Off the rip, this isn't as powerful as a Waterpik, not even the portable one. I started using water flossers 10 years ago with a portable Waterpik, then upgraded to a counter top Waterpik Ultra about 6 years ago. This past week it died on me, and this was the easiest (and cheapest) replacement option. I didn't expect amazing quality, and I was right not to. That being said, it's quite good for the price I bought it at. I got this on sale with a coupon for about $20. That's just under half the price of the cheapest Waterpiks. At twice a day, the battery lasted for just over a week. Like I said above, I don't know about the claims on how clean it keeps your teeth, but I'll update my review next time I go to the dentist. So far, it's done a good job of removing food particles which is the biggest thing I bought it for. Water pressure is a little low for me, but again I've been using Waterpiks at the highest pressure for a few years now. It can take a few passes for me to make sure I haven't missed anything in my teeth, and unfortunately that means I find myself refilling the reservoir at least once during most of my uses. Annoying, but I had to do this with the portable Waterpik too so I expected it and didn't dock points. It's only got two pressure settings: clean and soft. There's a massage setting has a pulse between the settings, but I don't use it. I only used the soft setting once and found it to be useless; I could compare it to a 2 or 3 pressure on a Waterpik. The 'clean' setting is comparable to a 5 or 6 on the Waterpik. Useable, but not super strong. Just enough for me to get some stubborn areas on my teeth, so I docked a half point for the highest pressure not being good enough for me. I've read some reviews of people saying that this has extremely strong pressure for a water flosser and others saying it's near perfect. I have to say that is not my experience at all. Could be a difference in manufacturing or any number of things, but for me the pressure could be half again as strong on the clean setting and I'd be much happier. This does NOT come with an adapter for the charging cable. You have to provide your own 5v power brick. I had enough extras lying around from other electronics that I could give it a dedicated adapter, but it is definitely annoying that they can't provide a $2 adapter in the box. For package reduction reasons? That's seriously the excuse they went for? Whatever. It's advertised so no docked points for it. Now the biggest issue I had with this flosser and what made me dock a whole point. The nozzles. Not the variety, that's fine, though I'll say that I have only used the standard nozzle and the tongue nozzle to date. I don't have gum issues that require the periodontal tip or orthodontia that require a the specialized tip for orthodontia. That being said, the problem with the nozzles is their quality and how they're seated in the device itself. The plastic they're made from is thin, and not very durable. For the tongue scraper, this means you can't exert a lot of pressure before the nozzle bends when using it. For the standard nozzle that means it can bend just from the pressure of your cheek and gum pressing on it. The way it's seated in the device itself doesn't help. No nozzle is loose, nor do they leak water, let me be clear there. Once the nozzle is seated, it won't come out and they spray water only as intended. No the issue is, the nozzles spin. In theory this wouldn't be a big deal, the nozzles are meant to spin to allow minute adjustments while they're in your mouth so you can keep that 90 degree angle on your gums. In practice, because the nozzles spin so easily you'll often find the nozzle pointing in the wrong direction in your mouth as you try and floss. This took a real adjustment to get right, and to be honest I'm still adjusting. I still have the nozzle spin the wrong direction on me sometimes, and it is extremely annoying to have to pay so much attention to the nozzle when I'm trying to use it. This is something I wouldn't have even thought of as a problem, except that Waterpik doesn't have it at all. Waterpik solved this problem by having an adjustable nozzle with set turns. Each time you turn the nozzle to a new angle, it clicks into place. Harder to spin the nozzle, but easier to use. Coslus spins freely, no clicking into place and no torque required to move. Because of that I find myself spinning the entire device while I use it to keep the the nozzle at a 90 degree angle to my gums. This is the biggest reason I over my teeth 3 or 4 times when I use the Coslus. The nozzle has spun off center a little, and I want to make sure my teeth are clean. You could try and hold the device at the nozzle and keep the nozzle from spinning, but that's extremely awkward (and the video they provide doesn't show the device being held or used that way so clearly they don't expect if of you). With all that being said, I got this mostly because I didn't want to go back to regular flossing and I couldn't afford getting another really nice Waterpik right now. This was a stopgap so I could keep 'flossing' and not mess with my budget much. In a month or so I'll probably get another countertop Waterpik and this will be relegated to a travel device. For now it does mostly what I need, in a slightly annoying way, and at a very affordable price.
J**K
Extremely nice you can set it to multiple settings and it works great
this product is very good. It worked really well on the teeth and on the gums. The only if he comes up with the water chamber is a little small so you have to build a chamber second time sometimes otherwise no great charging is easy and excellent to use and our or at the thing really works and it can be taken with you with a charging cord and your to go for a long period of time it’s very easy to take with you
S**S
Great Flosser
OMG This thing is amazing! Big water tank & a powerful stream with pulse! I just love it! WOW they’ve come along ways! Easy to use; just does a fantastic job! Very happy with this purchase!
O**T
Worth the price
Great product...slight problem with registration, but support is fixing it. Seems the product was sold by Woot and thus won't work with Company system, so they're working on a fix. Overall, does a nice job and comes with several attachments. The price is excellent as compared with the Waterpik I threw away. My only suggestion is start on the middle setting, as the clean will hurt your gums if you let the jet hit them. Update... Company sent a code and my product is registered.
C**C
Powerful, Sleek, and Perfect for Travel!
I’m really impressed with the COSLUS Water Dental Flosser C20 so far. It came with multiple attachments, including an orthodontic tip (which I love), and a USB charging cable. Just note that it doesn’t include the wall block, but that wasn’t a big deal since I already had one. I had never used a water flosser before, so my first attempt was a little chaotic — I filled it up, turned it on, and accidentally sprayed water all over my bathroom. Lesson learned: definitely keep it in your mouth before turning it on! 😅 Once I figured that out, it worked great. The pressure is very powerful, which makes it feel like it’s doing a really thorough job. The 300 ml tank lasted me about one full use, but it’s super easy to refill and snap back together. The design is sleek, lightweight, and cordless, which will make it perfect for traveling. Since I just started using it, I can’t speak to the battery longevity or long-term durability yet, but based on the power, ease of use, and included attachments, I’m very happy with this purchase so far. Definitely recommend if you’re looking for a strong, portable water flosser!
L**Z
Es un excelente producto, ya que la batería rinde un mes, tiene tres modos de presión de agua, se puede poner agua diluida con algún refrescante bucal, llega hasta donde tú cepillo quizás no llegue.
L**H
Effectively clean food in between my teeth and with it the smell. Highly recommended!
A**K
لحد دلوقتي ممتازة
G**M
Nice feels fresh 1st time user let’s see how it’s more efficient
م**د
👀
Trustpilot
1 month ago
2 weeks ago