H300 Water Flosser User Manual
unicare® H300 Water Flosser User Manual
Thank you for purchasing the unicare® H300 Electric Water Flosser.
Please read this manual carefully before use.
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◼ Operating Steps
Before use, please ensure the battery is sufficiently charged. For a new device, charge it fully before the first use. If the charging indicator lights up red during or after use, it means the battery is low and needs to be recharged immediately.
Step 1: Install the Nozzle
Refer to the diagram to install the nozzle. When you hear a “click” sound, it is locked in place. Press the button to remove the nozzle.
Step 2: Fill with Water
Two ways to fill:
Open the water tank lid and fill directly.
Twist the water tank clockwise to open and fill.
After filling with an appropriate amount of water, close the lid or twist counterclockwise to lock.
Step 3: Select Cleaning Mode
When the unit is off, press the “M” button to select the mode. The flosser has five modes:
⦁ High Mode: Maximum pressure, strong cleaning, for experienced users.
⦁ Normal Mode: Standard pressure, suitable for daily use.
⦁ Soft Mode: Low pressure, gentle cleaning, for beginners or sensitive teeth.
⦁ Low Mode: Lowest pressure, mild cleaning, for new users or sensitive gums.
⦁ Plus Mode: Alternating strong and soft pulses, deep cleaning and gum massage, for experienced users.
❇ Tip: First-time users are recommended to start with Low Mode.
Sample Reference Image ⬇️
https://unicareglobal.net/pages/%E6%B2%96%E7%89%99%E6%A9%9F%E4%BD%BF%E7%94%A8%E6%B5%81%E7%A8%8B
Step 4: Place in Mouth
Insert the nozzle into the mouth, aiming at the gum line and between teeth. Keep the water stream perpendicular to the target area. Keep the mouth slightly open.
Step 5: Power On
Press the power button to turn on. The flosser does not have an auto shut-off function; please turn it off manually when finished.
❇ Kind Reminder:
First-time use may cause tingling or slight bleeding, which usually disappears within 1–2 weeks. If it persists, stop using and consult a dentist.
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◼Troubleshooting
◼ Product Components
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◼ Battery & Charging
1. Charge 8–12 hours before first use.
2. When red light flashes, recharge immediately.
3. If unused for long, recharge every 2–3 months.
4. The battery is a consumable item. If the device fails to start due to prolonged lack of charging, it will not be covered under warranty.
5. Do not overcharge; unplug once full.
6. Use only standard USB chargers (5V1A).
7. Do not use damaged power plugs or charging cables to avoid danger. Please replace them before using again.
8. Do not use while charging, and keep the port dry.
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◼Battery Indicator
While On:
100%–90%: Green solid
90%–20%: Blue solid
<20%: Red solid
While Charging:
<20%: Red flashing
20%–100%: Blue flashing
100%: Green solid
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◼ Cleaning & Maintenance
⦁ Clean only with water; do not use corrosive cleaners or water over 40°C.
⦁ Wipe main unit with dry or slightly damp cloth; do not immerse.
⦁ Air-dry water tank after use; clean with cloth or soft brush regularly.
⦁ Wipe nozzle with dry cloth; do not bend or twist.
⦁ Clean charging plug regularly to avoid dust buildup.
❇ Reminder: Dentists recommend replacing nozzles every 3 months.
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◼ Safety Instructions
Statement: To reduce the risk of malfunction, electric shock, injury, fire, death, or equipment damage, please read all instructions and warnings in this manual carefully before using the product.
* Do not operate this product in any manner not specified in this manual.
* This product contains a built-in rechargeable battery. Do not throw it into fire or expose it to direct sunlight, as this may cause battery leakage, overheating, or explosion. The company assumes no responsibility for such incidents.
* Do not use while charging.
* Do not disassemble, modify, or use non-original accessories.
* Do not place the charging cable included with this product in a damp environment or in water.
* Keep this product out of reach of children and infants.
* Do not use this product for any purpose other than oral cleaning.
* Avoid dropping or subjecting this product to strong impacts.
* Do not use this product while bathing, showering, or soaking in hot springs.
* If you have severe periodontal disease, are undergoing dental treatment, have had oral surgery within the past two months, or are concerned about any oral discomfort, consult a professional dentist before use.
* Stop using immediately if the product shows signs of damage, rust, or cracks.
* Do not clean this product with paint thinner, benzene, alcohol, or other chemicals.
* Never aim the water flosser at people, as it may cause injury.
* Do not fill the tank with water over 40°C (104°F) to avoid burns.
* Do not direct the water jet directly into the gums or periodontal pockets to avoid injury.
* Make sure the product is turned off and unplugged from charging before cleaning or maintenance.
* Do not charge this product in high-temperature or humid places such as bathrooms or washrooms.
* Do not operate the product without a nozzle installed.
* Do not use nozzles other than the original manufacturer’s accessories to avoid hazards.
* Do not pour undiluted mouthwash directly into the water tank. If you wish to use mouthwash, dilute it according to instructions before filling the tank.
* Children aged 6 and above may use the product under adult supervision.
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◼Service & Warranty Information:
Products purchased through authorized channels are covered by a one-year warranty under normal, non-human-damage conditions.
If a product defect or malfunction is confirmed under normal use by our after-sales service department, a free main unit replacement (replacement only, no repair) will be provided.
The free warranty service does not cover the following cases:
(a) Damage caused by use of unauthorized accessories, misuse, abuse, negligence, modification, dropping, or unauthorized repairs.
(b) Normal wear and tear of appearance parts, including scratches, discoloration, or fading from long-term use.
(c) Damage caused by natural disasters (fire, earthquake, flood), public hazards, corrosion, or other force majeure events.
(d) Malfunctions or damage caused by unstable or excessive power supply voltage.
(e) Malfunctions or damage caused by exposure to high concentrations of organic gases.
(f) Damage caused by use of uncertified or non-standard chargers.
Warranty service is available with a valid proof of purchase and warranty card.
Counterfeit products not manufactured by our company are not covered.
Consumable parts such as exterior casing, brush heads, nozzles, and charging cables are not covered under warranty.
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◼Environmental Protection
This product contains a built-in rechargeable lithium battery, which may contain substances harmful to the environment. Before discarding the product or taking it to a recycling center, please remove the battery and deliver it to a designated battery recycling station to avoid environmental pollution.
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◼Product Information
Model Number: H300
Waterproof Rating: IPX7
Pulsation Frequency: 1400 times/min
Cleaning Modes: 5
Power Input: USB Type-C [ 5V 1A]
Battery Capacity: 2000mAh
Water Tank Capacity: 240ml
Charging Time: approx. 5–6 hours
Net Weight: ±250g
Package Contents: Main unit, set of 6 professional-grade nozzles, charging cable, travel pouch, cleaning brush, user manual
Standards: GB4706.59-2008, GB4706.1-2005
OEM Manufacturer: Shenzhen Hainasi Technology Co., Ltd.
Address: Room 203, Building 3, Hualangjia Industrial Park, Tongfuyu Industrial Zone, Kuxin Community, Guanlan Street, Longhua District, Shenzhen, Guangdong, China
Place of Manufacture: China
Importer/Distributor: Unicare International Co.
Address: 27F-1, No. 236, Shizheng N. 2nd Rd., Xitun Dist., Taichung City,
❇ Note: This water flosser is not a medical device. Please consult a dentist if you have any oral health concerns.