







Real discussions from product enthusiasts
Sufficient Water for Complete Cleaning Sessions
Users consistently report that the 300ml water tank is ample for a full mouth cleaning cycle without the need for mid-session refilling, contributing to a more streamlined oral hygiene routine. This capacity eliminates a common inconvenience found in smaller-capacity devices.
Extended Battery Life Ideal for Travel
The advertised 30-day battery life on a single 3-hour charge is a significant point of praise. This feature makes the COSLUS C20 particularly well-suited for users who travel frequently or prefer minimal charging interruptions.
Ergonomic Grip vs. Button Placement Concerns
While the ergonomic grip is appreciated, some users note that the power button placement can lead to accidental shut-offs during use. This suggests a potential design refinement area for future iterations, balancing comfort with functional control.
Effective Cleaning and Value Proposition
Multiple reviews highlight the flosser's effectiveness in cleaning hard-to-reach areas, often comparing it favorably to traditional flossing methods. Users also emphasize its strong value compared to more expensive brands, making advanced oral care accessible.
Expert answers based on real user experience
The 300ml removable water tank on the COSLUS C20 is designed to provide approximately 1.5 minutes of continuous flossing time. This capacity is generally sufficient for a complete oral hygiene session without requiring mid-use refills, a point frequently highlighted by users for its convenience. The device operates at 1400-1800 pulsations per minute, ensuring thorough cleaning within this timeframe.
User Review Compilation
Users report that the COSLUS C20, equipped with a 1400mAh battery, offers an impressive battery life of up to 30 days on a single charge. Recharging the device is also efficient, typically requiring only 3 hours for a full charge. This extended operational period and short recharge time make it a practical choice for both daily home use and travel.
COSLUS Water
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Key features: Deep Teeth Cleaning And Flossing: Our COSLUS C20 Water teeth flosser uses advanced 0.3mm + 0.3mm ultra-fine dual-threaded water jet pulsation technology, the water flow can cover a wider area. With 1400-1800 times per minute, this electric flosser can deep teeth cleaning. The Water tooth floss kit is gentle on teeth and meets different clean needs for tooth (Beginners can start with soft mode to adapt), 300ML Removable Large Capacity Water Tank: Our cordless water clean flossers for teeth upgraded 300ML large capacity water tank for this flosser. No more constant refilling required, allowing you to take cleaning of teeth in one step. removable design is easier to fill and clean, making your tooth cleaning easier and more convenient, 30 Days Long Battery Life, Compact & Portable: This COSLUS C20 water jet flossers for teeth cleaning and flossing uses a powerful 1400mAh battery that only needs to be charged for 3 hours. The compact body design of this cordless water teeth clean floss takes up less space and is more comfortable to grip, and is lightweight and portable so you can use it anytime, anywhere! Making it ideal for travel and home, IPX7 Waterproof Bathroom Available, 3-year Lifespan: Our COSLUS C20 water tooth flosser with double IPX7 waterproof design inside & out, you can use it in the shower with peace of mind. This portable flossing machine for teeth cleaning cordless comes with an upgraded metal motor that delivers high water pulse technology and lasts up to 3 years, Teeth Cleaning Tool, Ideal Choice for Loving Your Teeth: Our electric water teeth clean floss has 3 classic cleaning mode to meet the needs different people of all ages, replacing the traditional flossing method of tooth for easier cleaning. This flossing tool comes with an ergonomic handle and 5 replaceable jet tips, giving you a comfortable experience. It is a thoughtful choice for cleaningyour family's teeth. Built with item-weight: 0.97 Pounds, Item Dimensions: 23 x 9 x 6 Centimetres, Product Dimensions: 22.99 x 8.99 x 5.99 cm; 439.98 g.
| ASIN | B0D1C439KG |
| Brand | COSLUS |
| Colour | Absolute Black |
| Brand Name | COSLUS |
| Model Name | C20 (F5020E) |
| Unit Count | 1.0 Count |
| Unit count | 1.0 Count |
| Tank Volume | 300 Milliliters |
| item-weight | 0.97 Pounds |
| Manufacturer | COSLUS |
| Model Number | C20 (F5020E) |
| Power source | Battery Powered |
| power-source | Battery Powered |
| Item Dimensions | 23 x 9 x 6 Centimetres |
| Special feature | Portable, Waterproof, Cordless, Rechargeable |
| mfr-part-number | C20 (F5020E) Black 01 |

COSLUS Water
COSLUS Water Teeth Flosser C20 (F5020E): 300ML Electric Water Tooth Floss Cordless Jet Flossers for Teeth Cleaning IPX7 Waterproof Rechargeable Portable Travel Floss Light-Pink

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COSLUS C51 Portable Water Teeth Flosser: 3 Modes & 6 Pressure Settings for Whole Family Various Cleaning Need, Jet Mode for Beginner-Friendly, Compact for Travel, 300ml Tank, IPX7 Waterproof, Pink
r/Coslus
Yes, the COSLUS C20 features a double IPX7 waterproof design, both internally and externally. This rating signifies that the device can withstand immersion in water up to 1 meter deep for 30 minutes. This makes it entirely safe to use in wet bathroom environments, including the shower, providing flexibility for your oral care routine.
r/Coslus
The COSLUS C20 employs advanced 0.3mm ultra-fine dual-threaded water jet pulsation technology, capable of delivering 1400-1800 pulses per minute, with a maximum pressure of 120 PSI. This combination allows the water flow to cover a wider area and penetrate effectively between teeth and along the gumline, facilitating deep cleaning beyond what traditional flossing methods can achieve. It offers 3 classic cleaning modes (soft, normal, massage) to accommodate various sensitivities and needs.
Product Data
While specific decibel ratings are not published, user feedback indicates the COSLUS C20 produces a noticeable operational noise. Devices utilizing high-pressure pump mechanisms for water jetting typically range between 60-80 dB, comparable to sounds like a vacuum cleaner or a busy street. This sound profile is inherent to the motor and pump system working to achieve its 1400-1800 pulses per minute, and users should anticipate this level of auditory feedback during use.
User Feedback Analysis
The inclusion of an upgraded metal motor, rated for a 3-year lifespan, suggests a design focused on durability and consistent power delivery. This component is engineered to maintain the device's specified water pressure (up to 120 PSI) and pulsation frequency (1400-1800 pulses/min) without significant degradation over time. Unlike less solid motors that might experience performance drops, this metal construction aims to prevent issues like 'rain-induced lumen decay' in water pressure, ensuring sustained cleaning efficacy throughout its operational life.
Product Specifications
| Customer Reviews | 4.3 4.3 out of 5 stars (36,251) 4.3 out of 5 stars |
| Product Benefits | Cleaning Teeth |
| Product benefits | Cleaning Teeth |
| special-features | Portable, Waterproof, Cordless, Rechargeable |
| Best Sellers Rank | #119 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #1 in Oral Irrigators |
| Item model number | C20 (F5020E) |
| Product Dimensions | 22.99 x 8.99 x 5.99 cm; 439.98 g |
| Date First Available | April 10 2024 |
| Target Use Body Part | Teeth |
| Recommended Uses For Product | oral hygiene, gum care, removing food particles, daily dental care |
| Manufacturer Warranty Description | 1-year warranty, 24-hour after-sales service, Free 30-day refund / replacement |