# COSLUS E40 Water Flosser 300ml

For better interdental cleaning, the COSLUS E40 water flosser offers dual‑stream cleaning, 10 pressure levels and a 300ml tank, ideal for braces and.

- [Original product page](https://www.ofertitastop.com/uk/product/coslus-e40-water-flosser-300ml)
- Market: UK
- Language: en-GB
- Currency: GBP
- Product updated: 2026-10-11T06:18:06.674Z
- Category: Health & Beauty > Personal Care > Oral Care > Dental Water Jets
- Source store: amazon UK
- Active deal: Yes
- Price: 17.97 GBP
- Previous price: 29.99 GBP
- Rating: 4.4 / 5
- Reviews: 1524

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

The COSLUS E40 water flosser combines dual‑stream cleaning and portable convenience to help keep teeth and gums cleaner between brushings. It suits daily oral care and deeper cleaning when you wear braces or work around orthodontic appliances, offering a balance of power and gentleness.

## Key features

The device uses a patented dual‑stream technology that the manufacturer says improves plaque and debris removal for a more thorough clean. Two operation modes, Standard and Massage, let you switch from focused debris removal to a gentler gum massage. A stepless speed control wheel and 10 pressure levels allow one‑hand adjustments while the flosser is in use, so you can fine tune pressure to suit sensitive gums or tougher cleaning needs. The unit is cordless and claims up to 30 days of battery life per charge, with USB fast charging for convenience on the go. IPX7 waterproofing means it can be used safely in the bathroom or shower, and the 300ml tank reduces the need for mid‑session refills.

## Specifications

- Name: COSLUS E40 Water Flosser
- Type: Cordless water flosser
- Capacity: 300ml
- Modes: Standard, Massage
- Colour: White
- Material: BPA‑free

## Usage tips

Use Standard mode to remove food particles and plaque from between teeth and around braces, and switch to Massage mode when gums feel tender or need gentle stimulation. Ten pressure settings let you start low and increase gradually until the stream feels effective but comfortable. It’s handy to test settings before directing the stream at orthodontic hardware.

It’s a good fit if you want a compact flosser with a sizeable water tank and adjustable pressure. Bear in mind that manufacturer claims about battery life and cleaning power should be checked against actual use, especially if you travel frequently and rely on fast recharging.

## Care & maintenance

Rinse the tank after each use and allow the unit to air dry with the cap off to reduce residue. Replace or clean tips periodically according to wear and your oral care routine. Store the flosser in a dry place between uses to preserve the motor and seals.

## Images

![COSLUS E40 Water Flosser 300ml — 1](https://www.ofertitastop.com/i/YXBPp4wB9OchjanccNY-sXh1Cj4hFxqT2VgNKXUrai0Zt9o8zjNHCwEAVAEfuJ80VRchwZNx0i5MQBlYw08cHb1HglV2xW6ZSWHGPxF0gKUHke0l42saAX6GNQ.jpg)

![COSLUS E40 Water Flosser 300ml — 2](https://www.ofertitastop.com/i/-gEuZNEwos0KEHq5hPNmly0OBS__HH55y1uMER9z8XwjXkst7Jfm3ooOJtwINXAf0xqjI4y1m8CfpOyNWuauFm_EVL1zhETa2lzabkbQNpg8Y2SgsQS00VTrUw.jpg)

![COSLUS E40 Water Flosser 300ml — 3](https://www.ofertitastop.com/i/r-SFh7n672foqq_eIgU6ENYL8E6hws9PJ4anfUYYrZqMF4QPDQajjI9NWf2epzJckichFL0_5Ka-nnpngEObDJLNXT2WkD9Lc6q1hqS6vBDq3oaXn6BUaDo5NA.jpg)

![COSLUS E40 Water Flosser 300ml — 4](https://www.ofertitastop.com/i/QrrLfhPMfxD5u9RPucKShB44PRCchZmm7WKEaXQzrbYLePFlesIusf0F0KuyPN7B_-GMH7Rd6kPtLQ3c8bklgZvhXkInWUQcb7YFeuYip7Ul-EF0-qyWB9hUiA.jpg)

![COSLUS E40 Water Flosser 300ml — 5](https://www.ofertitastop.com/i/zxSzkfTBNTjSY_2fbcOyob_bOXj7XSe7Sglgz6ItoMdX-LKXZGSGJSsQwzWk2HGPZaz0QugV4UL_qfpXCjQjKRKQ7X526EeNraiTZOwcGWyDPFJh3MNS6479Cw.jpg)