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💼 Elevate your travel routine with the COSLUS T40 — clean teeth, no compromises.
The COSLUS T40 Mini Water Flosser is a sleek, cordless oral irrigator designed for frequent travelers and busy professionals. Featuring a lightweight, smartphone-sized body, a removable 180ml wide-mouth tank for easy cleaning, and four pressure settings tailored for sensitive teeth and braces, it delivers powerful yet gentle cleaning. Its IPX7 waterproof rating and 30-day battery life on a single 3-hour Type-C charge make it the ultimate companion for maintaining impeccable oral hygiene anytime, anywhere.





























| ASIN | B0DJ1F64WN |
| Additional Features | Portable, Cordless, Mini, Compact Design, Lightweight, Handheld, Rechargeable, Pocket Size Design, Easytopack, Palm-sized, Slimmest, Ultra-Portable, Modern Design, On-the-Go |
| Best Sellers Rank | #3,148 in Health & Household ( See Top 100 in Health & Household ) #11 in Power Dental Flossers |
| Brand | COSLUS |
| Brand Name | COSLUS |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 3,156 Reviews |
| Item Dimensions | 6.57 x 2.55 x 1.49 inches |
| Item Weight | 0.46 Pounds |
| Manufacturer | COSLUS |
| Manufacturer Part Number | T40 Black MIN01 |
| Manufacturer Warranty Description | 1-year warranty, 24-hour after-sales service, Free 30-day refund / replacement |
| Material Type | BPA-Free Materials, Plastic |
| Model Name | T40 Black MIN01 |
| Model Number | T40 |
| Power Source | Battery Powered |
| Product Benefits | Easier Than Floss, Floss Replacement, Family Oral Care, Daily Oral Routine, Gum Health, Prevents Bad Breath, Prevents Cavities, Plaque Removal, Braces Cleaning, Removes Plaque, Food Trap Rescue, Removes Teeth Stains, Office Quick Clean, Post-Meal Cleaning, Outdoor Deep Cleaning Product Benefits Easier Than Floss, Floss Replacement, Family Oral Care, Daily Oral Routine, Gum Health, Prevents Bad Breath, Prevents Cavities, Plaque Removal, Braces Cleaning, Removes Plaque, Food Trap Rescue, Removes Teeth Stains, Office Quick Clean, Post-Meal Cleaning, Outdoor Deep Cleaning See more |
| Recommended Uses For Product | Daily Cleaning, Deep Cleaning, Everyday use, Daily Oral Care , Family Oral Care, Morning Routine, Nighttime Routine, Office Quick Clean , Post-Meal Cleaning, lunch break oral care, Restaurant Restroom Quick Clean, Outdoor Deep Cleaning, Camping Dental Care, Hiking Oral Care, Road Trips Oral Cleaning, Frequent Travelers Carry-on, On-the-Go Use, Teeth Cleaning, Gentle Cleaning, Braces Cleaning, Orth… |
| Special Feature | Portable, Cordless, Mini, Compact Design, Lightweight, Handheld, Rechargeable, Pocket Size Design, Easytopack, Palm-sized, Slimmest, Ultra-Portable, Modern Design, On-the-Go Special Feature Portable, Cordless, Mini, Compact Design, Lightweight, Handheld, Rechargeable, Pocket Size Design, Easytopack, Palm-sized, Slimmest, Ultra-Portable, Modern Design, On-the-Go See more |
| Specification Met | CE, ROSH, FCC, IC, IPX7, BPA-Free, PSE |
| Tank Volume | 180 Milliliters |
| Target Use Body Part | Teeth |
| Unit Count | 1.0 Count |
J**A
Life Saver! Especially if you have braces!
Oh my GOD! This thing is a LIFESAVER! I literally take it with me everywhere! It’s small enough to fit in my purse, and I have braces, one of the heads has a soft brush with it and is so gentle even while getting food out of all the nooks and crannies while I’m out and about. If I was to say one con, it would be how it can be a but messy, but idk how that’s avoidable, honestly. It’s also easy to use, and carry, so it’s nice to have when I’m out at a restaurant or at work. I absolutely recommend this for anyone with braces especially.
C**Y
Fantastic Water Pik
This travel sized water pik is perfect for me because it doesn't take up space on my bathroom counter and is easy to store. It comes with three different picks that you can interchange as needed. I love the ease and simplicity of this pick. It has 4 modes from slow to fast. I usually use mode 2 since my teeth are sensitive. But the water pressure is excellent and gets my teeth & gums feeling fresh & clean. It also helps with my flossing since my teeth are very tight and therefore difficult to use floss. This water floss helps a great deal! A charge lasts quite awhile so you can use this without any annoying cords or wires in the way. I really love this simple yet effective water floss. An excellent investment.
E**E
great for travel!
I was traveling internationally and didn't want to lug my water pik along. I thought about buying a smaller model, but the different voltage was an issue. I lover that this mini flosser can be charged with a cable from my phone or laptop. It's small enough that it doesn't take up a lot of space in my luggage, and comes with extra irrigator heads and a nice travel bag to keep everything together and clean. The stream force is fairly good. There are three levels, but I only use the highest. Even that is a little less force than my usual water pik, but it's good enough for travel. It's a little bit of a hassle to fill the small tank because it empties so quickly, but then again, the reason it empties quickly is because it's small, which is why I bought the whole thing in the first place. I can handle that minor annoyance. I definitely recommend this!
D**B
Love Love Love It.
As someone with periodontal issues, I love love love this water flosser. It does everything it promises. And I use it a lot because it is so easy to use and take on trips. I rarely ever miss flossing anymore. And honestly if it breaks, which I doubt it will, I will instantly replace it. My only caveat is since it is so small, I find I typically fill it with water twice, but it takes seconds to fill so not a big deal. And it stays charge forever. Highly highly recommended.
K**Y
love this thing! small in size, adjustable settings, no pain!
this water flosser is perfect for average daily use and travel! it is light weight, easy to use, the water flow is stable, and it definitely feels like it is cleaning between my teeth and pressure washing my gums and hard to reach places. the settings are adjustable for regular or soft pressure and it comes with a few different attachments which is nice. I have very sensitive gums but I felt little to no pain using this with one of the different attachments and on the soft setting. I definitely feel like this product is a fair price and I love the compact size. I would recommend!
A**A
Great product on a small package.
I used to have an Oral B water flosser but even the portable one is bulky. My dentist recommended trying something from Amazon and I’m glad I did. This works great and is small enough that I take it with me when I travel, which is often. And the power level is adjustable but also strong. Battery life is great, too. I charge it every week to 10 days, and it hasn’t ever run out of power.
J**O
Nice & portable
Perfect for travel ! Works great - Very powerful & holds the charge .
E**I
🚩🔥**They refuse to register the warranty until they can harvest my IP address.**🔥🚩
I went to register the warranty so it'd be covered if it craps out. Should take 30 seconds. We all need to start speaking up about this. I opened Iron Fox (a privacy-respecting browser, because I'm not interested in being someone's data product) and filled out the form. Name. Order number. The usual. Hit submit, and the site just sat there. Wouldn't budge. Then a little black box popped up at the bottom of the screen and quietly confessed, in plain English: **"ip cannot be obtained"** Why does honoring the warranty depend on whether you can log my IP address? So I read their privacy policy, then I pulled up the actual code behind their homepage and their warranty page. Here's what's running in the background while you "register your warranty": - Microsoft Clarity. Session replay software. Not page views. Not clicks. Actual video recording of your visit, including mouse movements and keystrokes, while you type your name and order number into the form. Someone at COSLUS can rewatch your warranty registration like a TV show. - Meta (Facebook) Pixel. Yes, registering a flosser puts you in Facebook's ad-targeting pool. - TikTok pixel and Pinterest tag. Same deal, two more ad networks. - Google Tag Manager, Google Analytics 4, and six separate Google tracking IDs. - Klaviyo, an email and SMS profile builder tied to your address. - Ahrefs, Loox, Bazaarvoice. SEO and review platforms also collecting data. - A Shopify data-sharing config with "share all events" enabled, scoped to customer address, email, name, phone, and "personal data." That's the surveillance layer. Now the actually weird part. The warranty form on coslus.com does not submit to coslus.com. The visible form posts to a third-party SaaS called PowerfulForm, with hidden fields silently bundling your Shopify customer ID, email, name, and page URL alongside whatever you typed. Meanwhile, the warranty app itself is hardcoded to talk to a server called webapi-cdn.zhcxkj.com, a Chinese-domain endpoint, over plain HTTP, not HTTPS. And the warranty support email isn't @coslus.com. It's a third-party multi-brand claims handler. Your warranty data is going to at least three places that aren't COSLUS, one of which is an unencrypted endpoint on a Chinese domain that any coffee-shop Wi-Fi can read in transit. The page source is also full of Chinese-language developer comments and contains an obfuscated script at the top of every page that hooks into your browser's event loop. None of this is in their privacy policy. One star. Not because the product is bad. For all I know it works fine. One star because "register your warranty" on this site means: get session-recorded, fingerprinted across four ad networks, profiled by six Google tracking IDs, handed off to a third-party claims processor, and have your form data tossed unencrypted at a Chinese dev server. The "ip cannot be obtained" message wasn't a glitch. It was the system trying and failing to log my IP because my browser wouldn't let it. That's the only reason I noticed any of this. And here's the part that should actually piss you off. Every one of those tools, Microsoft Clarity, Meta Pixel, TikTok, Pinterest, Klaviyo, six Google accounts, costs money or engineering time to set up and maintain. They're there because the data they pull out is worth more than what it costs to put them in. Session replay tells advertisers exactly which words on a page made you hesitate. Your email tied to your purchase history tells Klaviyo and Meta what to show you next month so you'll buy something else. Pixel pools let them re-target you across every ad-funded site you visit for the next 90 days. The flosser was the loss leader. **You** are the actual product being sold, to ad networks, to data brokers, to whoever pays. They paid maybe four bucks to manufacture this thing and shipped it to you so they could plug you into a pipeline that earns them money every time you open Instagram, scroll TikTok, or Google a competitor. The "warranty registration" wasn't customer service. It was them confirming the kill, closing the loop between a real human, a verified address, a working email, and a buying pattern. That data is worth multiples of what you paid for the product. Multiply that by every customer who clicks "submit" without asking why a flosser company needs their IP address, and you start to see the business model.
A**G
PÉSIMO - DEJÓ DE FUNCIONAR
Después de que se terminó la primera carga, lo cargué y dejó de funcionar.
L**L
Me gusto el producto pero ni siquiera lllego
que paso? por que se cancelo mi compra?
C**Z
Wow this is powerful !
This oral irrigator is very powerful for its size , I will warn you that it can be very messy , please see the photo above when I first switched the flosser on it shot water right across the room, however once I realised the strength of the water sprouting out ,I really appreciated it’s doing the job it was intended to do. I would suggest when you first use it that the water you use is not too cold , as it did set my teeth on edge but when I use tepid water I am amazed at the debris that washes out from between my teeth even after I have flossed. The water did run out fairly quickly , but that’s to be expected when you consider the force of the water. It’s good that the irrigator is easily recharged and also that you get different nozzles to use -: a standard nozzle , a orthodontic nozzles , plus a tongue scraper and it can all be kept tidy in a drawer string bag also supplied with this flosser. It is also reassuring that you get 24-month warranty for free.
A**R
Small, travel size and powerful but I prefer the gentle setting
I use my flosser on a daily basis but it is large and not portable unlike this. Small, travel sized and so ideal for families like mine who floss on a daily basis. After cleaning this out, I filled water into the detachable water tank and slotted it back in, selected a setting and for my initial use I was taken back by the power and coldness. I did stop it immediately and set it on the most gentle setting, after which it was more comfortable to use on my teeth and cleaned them out well. It works just like my main flosser so I am happy with it due to its size and power. I do not use mouthwashes due to conflicting safety advice so I much prefer this as it is plain water and clearly removes particles in between my teeth.
S**M
Doesn't work as well as floss but doesn't make my gums bleed!
This is a neat device, I've been using it on and off for about 3 months. It is effective but you I do get a better result from more traditional flossing. The benefit for me is normal flossing tends to end up with my gums bleeding so use this when I'm travelling with work. Single charge lasts the 2 or 3 days I am away before I charge it again, hasn't run out on me yet.
Trustpilot
1 month ago
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