---
product_id: 594893366
title: "MySmile LP221 Cordless Water Flossers for Teeth with UVC Light Sanitizer and OLED Display, 335ML 4 Modes Water Teeth Cleaner Picks for Teeth Cleaning and Water Flossing (Midnight Black)"
brand: "mysmile"
price: "¥21535"
currency: JPY
in_stock: true
reviews_count: 13
category: "My Smile"
url: https://www.desertcart.jp/products/594893366-mysmile-lp221-cordless-water-flossers-for-teeth-with-uvc-light
store_origin: JP
region: Japan
---

# Up to 2800 water pulses/min OLED display with mode & pressure info 40 days battery life (lowest mode) MySmile LP221 Cordless Water Flossers for Teeth with UVC Light Sanitizer and OLED Display, 335ML 4 Modes Water Teeth Cleaner Picks for Teeth Cleaning and Water Flossing (Midnight Black)

**Brand:** mysmile
**Price:** ¥21535
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your smile game with tech-savvy power flossing 💧

## Quick Answers

- **What is this?** MySmile LP221 Cordless Water Flossers for Teeth with UVC Light Sanitizer and OLED Display, 335ML 4 Modes Water Teeth Cleaner Picks for Teeth Cleaning and Water Flossing (Midnight Black) by mysmile
- **How much does it cost?** ¥21535 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/594893366-mysmile-lp221-cordless-water-flossers-for-teeth-with-uvc-light)

## Best For

- mysmile enthusiasts

## Why This Product

- Trusted mysmile brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hygiene Reinvented:** Built-in UVC sanitizer and 120s self-clean cycle keep your flosser germ-free and fresh every use.
- • **Tailored Oral Care:** 4 modes + 3 pressure levels let you customize your flossing experience for sensitive or deep clean needs.
- • **Long-Lasting & Spacious:** 335ml reservoir means less refills, paired with a 1800mAh battery that lasts up to 40 days on low mode.
- • **Precision Power Cleaning:** 2000-2800 pulses/min with 40-150 PSI pressure blasts away plaque & debris effortlessly.
- • **Sleek, Waterproof & Travel-Ready:** IPX7 waterproof design with anti-spray start & portable PU pouch for flossing anytime, anywhere.

## Overview

The MySmile LP221 Cordless Water Flosser combines advanced dental tech with user-friendly features: delivering up to 2800 water pulses per minute at customizable pressures, a large 335ml water tank for extended use, and a rechargeable battery lasting up to 40 days. Its OLED display keeps you informed on mode, pressure, and battery, while the built-in UVC light sanitizer ensures hygienic maintenance. Waterproof and portable, it’s designed for modern professionals seeking a powerful, convenient upgrade to traditional flossing.

## Description

desertcart.com: MySmile LP221 Cordless Water Flossers for Teeth with UVC Light Sanitizer and OLED Display, 335ML 4 Modes Water Teeth Cleaner Picks for Teeth Cleaning and Water Flossing (Midnight Black) : Health & Household

Review: Very Satisfied with the MY Smile water flosser - I absolutely love my new MY Smile water flosser. On the advice of a dental hygienist I purchased a different brand this past July and within 5 months several areas of plastic on the device had broken off. Recently I spoke to another hygienist, who mentioned that one of her colleagues was pleased with their My Smile flosser. I really like the fact that you can fill the water container by unscrewing the base, no need to worry about a small plastic opener that can easily break off. Also, the digital readout is very helpful. I’m also impressed with UV feature that sterilizes the unit after each use. I am very pleased with how well the flosser works and also that you can choose between several different pressure modes. My only complaint is that the instruction booklet is a little difficult to understand. But, I contacted the company and they responded within a few hours and will be sending me more detailed instructions. I am very satisfied with this product and happy to have this water flosser added to my oral care.
Review: Good power and nice-sized reservoir. - This is the first time I've used a water flosser so don't have anything to compare it to. I understand that a counter-top, plug in device holds more water and is more powerful (and more expensive), but I didn't have the space for that so went with this one based on reviews here and on YouTube. It's pretty straightforward and I've been using it at the strongest setting, which does seem to remove some leftovers from regular flossing, though sometimes do have to use regular flossing afterwards to clean up leftovers. There is a bit of a learning curve, but I've gotten to the point where I am no longer intermittently power washing my face. One thing to note when you charge it, it looks like it stops at 93% full, but in fact slows down significantly to protect the lithium battery (I contacted the seller about this and they responded quickly to verify this protective factor, though they initially asked for a video of what I was seeing - almost a routine request these days - and I refused because it was ridiculous, and they seemed to agree and just answered my question. Also, this device is a bit more expensive than some other portable ones, but seems to be of good quality and does have the bigger reservoir; however, for the price, they could have included a charger. They specifically say to use a 5 volt, 1A charger, and fortunately I was able to find one around the house. Don't know if a charger with more Amps would harm it. Can't comment about the longevity yet since I have only had it a few weeks, but so far, so good.

## Features

- THE GAME CHANGER OF POWER DENTAL FLOSSERS - MySmile LP221 water dental flosser picks up the slack on market for water flosser that excels in both appearance and abilities; By the result of a top-notch pump, the oral irrigator generates 2000-2800 times/min water pulse with pressure range of 40-150 PSI to pump out powerful and precise water stream, as it seeks to remove food residues and stains between teeth and below the gum line thoroughly, keep your breath fresh and better your gum health
- CUSTOMIZABLE PRESSURES & READABLE DISPLAY - Benefit by 4 modes-Soft, Normal, Strong and Pulse and 3 pressure levels (Exclude pulse mode) to set, you are able to customize 10 patterns of water flossing; A larger OLED display indicates what you want: Battery power, water temperature, mode and pressure level; thereby you are ready to charge the machine in time, regulate water temp based on your teeth sensitivity, as well as select proper mode and pressure for your appeal on teeth cleaning
- SELF CLEAN, NO WORRY ABOUT MILDEW - As a teeth cleaner to maintain oral hygiene, it's necessary that the electric flosser itself shall be sanitary and clean; Built-in light provides 120s self-cleaning process to keep the water tank and jet tips unpolluted the next time you use, ensuring optimal and hygienic oral care; Multiple tips are designed for demands on different oral cares, and their rotatability empowers you to clean hidden areas that are hard-to-reach
- LESS WATER REFILL, LONGER LASTING BATTERY - We know how annoying it is refilling water multiple time in a comprehensive teeth cleaning and flossing process; The enlarged water reservoir is 50% larger than others', that means you will enjoy a continuous water floss once water tank is fully filled; Enduring 1800 mAh battery of dental flossers for teeth will last up to 40 days when in the lowest mode, besides it's rechargeable to connect with computer, power adapter, power bank or car adaptor
- INNOVATED DESIGN WITH THOUGHTFUL FUNCTIONS - The IPX7 waterproofed waterfloss flosser enables you to safely use it in the shower if you are afraid of mess in bathroom; 3 steps to start water dental flossers, helps preventing sudden water spraying if power button is accidentally pressed; Filter designed at the end of gravity-ball sucker is to prevent from clogging and decreasing machine damage; Accompanied with a PU pouch, it's portable for you when you go camping, travel by air, in office, etc
- PICK A POWER FLOSSER AFFORDABLE AND IMPACTFUL - Elevate your daily oral care routine with a new and highly effective method for deep cleaning, rather than just toothbrush or traditional dental floss; Our water tooth cleaner delivers a powerful clean to hard-to-reach areas like under the gums, pits, fissures, and around dental work; It’s an excellent addition to your hygiene regimen, helping to prevent the buildup of plaque and tartar, and supporting the health of teeth and gums—whether you have natural teeth, implants, or orthodontics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CL9QX8RZ |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #15,381 in Health & Household ( See Top 100 in Health & Household ) #46 in Power Dental Flossers |
| Customer Reviews | 4.3 4.3 out of 5 stars (13,146) |
| Date First Available  | November 23, 2023 |
| Item model number  | LP221 |
| Manufacturer  | MySmile |
| Product Dimensions  | 3.15 x 3.15 x 9.65 inches; 1.01 Pounds |

## Product Details

- **Brand:** MySmile
- **Power Source:** Battery Powered
- **Product Benefits:** Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque
- **Special Feature:** Display Screen, Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Rechargeable
- **Unit Count:** 1.0 Count

## Images

![MySmile LP221 Cordless Water Flossers for Teeth with UVC Light Sanitizer and OLED Display, 335ML 4 Modes Water Teeth Cleaner Picks for Teeth Cleaning and Water Flossing (Midnight Black) - Image 1](https://m.media-amazon.com/images/I/71D6Q9OtFUL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Can you use this water flosser in the shower?**
A: Yes, absolutely. IPX 7 waterproof class provides comprehensive protection on the machine, but please always make sure the charging port cover is tightly attached before use.

**Q: How do you clean or disinfect the water tank and hose?**
A: The power dental flosser features UVC light sanitizer for regular clean or disinfection. When power if off, long press "M" button to turn on UVC mode.

**Q: How do you charge the unit? And how to get a replacement charger?**
A: The package includes a type-C USB charging cord, which can be connected to power bank or computer to charge the machine. Please message us to get a free replacement or buy any other-brand type C charging cable if the original is lost.

**Q: Does this oral irrigator spray water everywhere?**
A: No, you might not use it in a proper way. You need to always place the tip in your mouth and close your lips before the device runs.

**Q: Can you use mouthwash in this device?**
A: Yes, you can add some salt or mouthwash to water as your need for fresher breath, MySmile mouthwash packets will be a great choice. Also, when used with MySmile teeth whitening products, your teeth will be whitened faster and more effective.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Satisfied with the MY Smile water flosser
*by A***R on November 30, 2025*

I absolutely love my new MY Smile water flosser. On the advice of a dental hygienist I purchased a different brand this past July and within 5 months several areas of plastic on the device had broken off. Recently I spoke to another hygienist, who mentioned that one of her colleagues was pleased with their My Smile flosser. I really like the fact that you can fill the water container by unscrewing the base, no need to worry about a small plastic opener that can easily break off. Also, the digital readout is very helpful. I’m also impressed with UV feature that sterilizes the unit after each use. I am very pleased with how well the flosser works and also that you can choose between several different pressure modes. My only complaint is that the instruction booklet is a little difficult to understand. But, I contacted the company and they responded within a few hours and will be sending me more detailed instructions. I am very satisfied with this product and happy to have this water flosser added to my oral care.

### ⭐⭐⭐⭐⭐ Good power and nice-sized reservoir.
*by K***R on September 30, 2025*

This is the first time I've used a water flosser so don't have anything to compare it to. I understand that a counter-top, plug in device holds more water and is more powerful (and more expensive), but I didn't have the space for that so went with this one based on reviews here and on YouTube. It's pretty straightforward and I've been using it at the strongest setting, which does seem to remove some leftovers from regular flossing, though sometimes do have to use regular flossing afterwards to clean up leftovers. There is a bit of a learning curve, but I've gotten to the point where I am no longer intermittently power washing my face. One thing to note when you charge it, it looks like it stops at 93% full, but in fact slows down significantly to protect the lithium battery (I contacted the seller about this and they responded quickly to verify this protective factor, though they initially asked for a video of what I was seeing - almost a routine request these days - and I refused because it was ridiculous, and they seemed to agree and just answered my question. Also, this device is a bit more expensive than some other portable ones, but seems to be of good quality and does have the bigger reservoir; however, for the price, they could have included a charger. They specifically say to use a 5 volt, 1A charger, and fortunately I was able to find one around the house. Don't know if a charger with more Amps would harm it. Can't comment about the longevity yet since I have only had it a few weeks, but so far, so good.

### ⭐⭐⭐⭐ Great! Lasted much longer than WaterPik
*by C***R on December 9, 2025*

For my money, this beats WaterPik. I owned a countertop WP which got black mold despite efforts to keep it clean. It's just impossible to dry out the interior tubing. I tried a handheld WP device which died within a couple months of use. I purchased this one because of the UV light to keep out mold and the cheaper price point, and so far it has worked extremely well. The gentlest setting is perfect for me (it has quite a few settings). The charge lasts a VERY long time. Current charge is still at 89 percent after weeks of daily use. I took one star off because the on/off button is in a bad spot. It's right at the skinniest part of device which is where your hand naturally wants to hold for usage. (especially if you have small hands, like me). Many times I have accidentally hit that button and squirted myself in the face or squirted it across the room. It's the worst place for that button! If they had put it anywhere else, it would a five star, hands downs.

## Frequently Bought Together

- MySmile LP221 UVC Sterilizable Cordless Water Flossers for Teeth 335ML Portable OLED Display Dental Flosser with 4 Modes 8 Jet Tips and a Storage Pouch for Home and Travel (Midnight Black)
- Aquasonic Black Series Ultra Whitening Toothbrush – ADA Accepted Electric Toothbrush- 8 Brush Heads & Travel Case – 40,000 VPM Electric Motor & Wireless Charging - 4 Modes w Smart Timer

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-12*