1) Auto-sanitize
- The 99.99% sanitization efficacy of direct water pipes and spouts applies to the representative model (WU903AS) and is based on internal evaluation methods by the Korea Testing & Research Institute for Chemical Convergence and KOTITI Testing & Research Institute. Results may vary depending on usage conditions such as ambient temperature.
- Test bacteria: Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa.
- The range of high-temperature sanitization is limited to the filter and pathways from the filter to the spout.
- Automatically sanitizes the pipes for cold, hot, and purified water once a week and includes the cold-water module every four weeks.
- Sanitization takes approximately 15 minutes (excluding cold-water module) or 30 minutes (including cold-water module) and can be tracked via the LG ThinQ app.
- Automatic operation requires the reservation feature in the LG ThinQ app to be active.
- Spout sanitization: press and hold the button for 3 seconds and place a container of at least 500ml under the spout — takes about 1–2 minutes and can be tracked via LG ThinQ.
2) UV sanitization
- UVnano is a combination of "UV (ultraviolet)" and "nanometer (unit of length)."
- The 99.99% internal sanitization efficacy of the UVnano spout is based on internal evaluation methods by the Korea Conformity Laboratories and Korea Testing & Research Institute for Chemical Convergence. Results may vary depending on ambient temperature and usage conditions.
- Test method: test bacteria solution was introduced into the spout at 25±5°C, and bacterial count reduction was compared before and after 24-hour operation of the UV LED auto-sanitization function.
3) All-Puri Filter System
- Filters contaminants using activated carbon adsorption and electrostatic adsorption methods.
- WQA-certified — the certification applies to the filter used in the system, not the water purifier product itself.
- Based on a quality inspection report issued by the Korea Water Technology Certification Institute.
- Heavy metal filtration (9 types): Mercury/Lead/Arsenic/Cadmium (90–100%); Iron/Aluminum (80–100%); Copper (70–100%); Zinc (70–80.9%); Manganese (80–90.9%). Based on internal testing (February 2024).
- Norovirus filtration (99.99%) tested by Norogen Co., Ltd. (December 2021), at a 2.0 LPM flow rate.
4) WQA Certification
- Certification applies to the All-Puri Filter System, not the purifier product. Validity: 5 years.
- Microplastic filtration performance is based on testing by WQA (June 2024); heavy metal adsorption and virus-clear filters certified under NSF/ANSI 42 standards (Class 1).
- Test method: a water sample with an average microplastic concentration of 440,000 particles/mL (0.5–1.0 μm) was passed through the filter at a flow rate of 0.3 gpm.
5) Adjustable Temperature
- Hot water ranges: 85°C (80–90°C), 75°C (70–80°C), 40°C (35–45°C). Actual temperature may vary depending on environment & usage patterns.
- Up to a 10-second wait when dispensing hot water (icon blinks); the first cup after cold/purified water may be cooler than the selected temperature.
- Up to a 1-second wait when dispensing cold water; the first cup after hot/purified water may be warmer than usual.
- For safety reasons, the continuous dispensing feature is not available for hot water.
6) LG ThinQ™
- A home Wi-Fi environment is required to register appliances in the LG ThinQ app.
- Download the LG ThinQ app from the Google Play Store or Apple App Store.
- During initial setup, both the smartphone and water purifier must be connected to the same Wi-Fi network; the purifier must remain connected to the registered network for ongoing operation.
7) Filter Delivery
- The filter delivery service is available only with a subscription to appliance care or self-management plans.
*Product images in videos/photos are for illustrative purposes only and may differ from the actual product.
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