















💧 Elevate your smile game—floss smarter, travel lighter, and clean deeper!
The COSLUS Portable Water Flosser E40 offers 10 customizable pressure settings with a stepless dial for personalized oral care. Its cordless, compact design features a 300ml reservoir and multiple nozzle types, making it ideal for families and travelers. With IPX7 waterproofing, a 30-day battery life on a single USB charge, and BPA-free materials, this professional-grade flosser combines durability, safety, and advanced dual-flow technology for superior interdental cleaning.











| ASIN | B0D7VK6DNL |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #6,220 in Health & Household ( See Top 100 in Health & Household ) #18 in Power Dental Flossers |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,107) |
| Item model number | E40 |
| Manufacturer | COSLUS |
| Product Dimensions | 9.37 x 3.35 x 2.35 inches; 14.89 ounces |
R**N
Great for kids b/c of the varied settings.
I ended up buying one of this for every member of my family when they went on sale. Great battery life, good sized resevoir, the attachments are easy to install, and it does a great job cleaning. It also survived two airplane trips in my checked bags just fine. I had to get this one for my daughter b/c the normal model of this is too strong, so the level 1 or 2 is great for a beginner child with these. No leaks, works great.
A**Z
Very good product
like this dental irrigator. It works well and is easy to use. My teeth feel cleaner after using it. The water pressure is good and it’s easy to charge. I recommend it.
M**T
Good for the price.
OK, it works. I have braces. I bought this to help keep my teeth clean between cleanings and reduce unwanted plaque. It takes some getting used to, in that the instructions state the best angle for the jet is 90 degrees to the gap between your teeth. You can do that, but you have to practice. Otherwise, the battery life is good, the additional water attachments are helpful, and it's very portable. Having the ability to pack this in a bag is a huge advantage over a more traditional water pick type devise. Good for the price.
T**W
Love it
Have waited a while before positing my review so I can give an honest review. I am so happy with the water flosser. Not only is it affordable it works great for me. It comes with several different pick tips to choose from and you can adjust the setting speed which is key if you need them for implants like me. I had dental implants surgery about 6 months ago and use this at least 2xs a day. The charge stays for a long time, and you have to refill the water tank often depending on how much water you use at a time however that is a good thing because you really don't want water siting in something too long. Fresh water is always better. It is easy to change the picks and refill. Charging is fast and it even comes in a few colors. I got green to match my countertops in my bathroom! Highly recommend!
#**#
Great for Gums! Bad Charger System
Review for: COSLUS Portable Water Flosser for Teeth: 10 Pressure Settings Professional Water Dental Pick for Orthodontic, Braces & Sensitive Gums - Cordless for Travel Use, for Adults Teens, BPA-Free, W40(WFP14) Update: After using this device for several months I can say there has been nothing that has helped my gums more than using this water flosser. I have had no problems at all with it, other than the jet being quite strong. My gums are in much better condition now, though the flosser does still sometimes cause a little bleeding. I have not found anything better for cleaning under my bridges, much better than normal floss. I do still use floss every day, and this device every day. I store it on it's side so no issue with water staying inside the control knob. Changed my rating from 3 stars to 5 stars despite the rather stupid charging cord (why not use a normal USB C connector?). Original Review: This thing sure has a powerful water jet! OK, just starting out and using lower power settings. I am finding that the flosser does what it is supposed to do. No issues there. Strong settings do cause some pain, and it is easy for the power dial to be moved to a different setting so be sure to check every time you use the flosser. Strong settings causing pain? Yes indeed! Set to high and pointed at my hand left me wondering if the water jet would break the skin on my hand, it is that strong. Low settings are great though. Maybe after a few months use I can set it higher, or maybe no need... The charger system is not well designed and they take the cheapskate route of not including the actual charger, just a cord. That is what most companies do these days, but what makes this one particularly bad is although the cord requires a USB A power supply, the other end only works with this device. This means you must keep track of yet another charging cable instead of the manufacturer using a standard USB C connector on the flosser. Stars off for the charging system, for sure. Cleaning? Good luck. The (extremely fine print) instructions say to clean and dry the flosser for storage. How on earth are we expected to clean and dry a water tank that only has one 1/2 inch hole for access? Instructions also say to be sure to drain water out of the speed control ever use. I am guessing that there will be some nasty build up in there after a time. Charging port? Instructions say we must not get water in the charging port. Many other devices with USB C connectors are at least somewhat water resistant. Stars off for these things. Overall, the flosser works, cleans my teeth as intended. My gums feel better after using on low power for a week. So, the score is flossing function, 5 stars, everything else is somewhat disappointing. For the price, I am happy enough with this unit. Not sure other, more expensive flossers would be much better, but I have not tried them... If I find issues with this flosser in the future, my review will be updated.
L**A
Easy cleaning
The size holds enough water. Its pressure strength is adjustable to a low soft setting or a high pressure washing setting. Its easy to fill up. It cleans well. The charge lasts a long time. Would recommend.
M**Y
Very Powerful, easy to use
This is a very powerful water flosser. It gets between the teeth very well, and has multiple settings for the water pressure. As the instructions state, start low and work your way up, to get used to the water stream, and not damage your gums while they strengthen. Has multiple heads for different types of teeth cleaning, including a tongue scraper with water flow. Heads are easily interchanged. Small enough to store on the counter next to your toothbrush. Leaves teeth very clean, and definitely gets food out from between teeth. If you are not used to flossing daily, or don't floss properly, it can make your gums bleed a little the first few times you use it! That goes away as your gums strengthen and get healthier. Mine stopped after the first week of use. Amazing tool for dental health!
S**N
Easy to use
In general the unit works well. Easy to use & much quieter than my electric unit. After 2 months of use the hinge on small hole to fill unit broke. I have been able to continue use as long as I’m very careful & keep my finger over the plug. Somewhat disappointed but will continue to use unit as long as it stays together.
A**I
Muy bueno precio calidad
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