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HW03 Series – Premium Undersink Water Purifier

カテゴリー Under-Sink Water Purifiers

  • RO Filtration – Combines PPC composite pre-filtration and a reverse osmosis membrane, with 600 GPD and 800 GPD configurations for different household water requirements.

  • High Flow Options – Available in 600GPD and 800GPD models, delivering water production rates of up to 2.1 L/min for instant, on-demand purified water.

  • Smart Efficiency – Grade 1 water efficiency with a 2:1 pure-to-waste ratio, reducing waste while maintaining purity.

  • 静かな動作 – Ultra-low noise at ≤55 dB(A) for a peaceful kitchen environment.

  • Intelligent Faucet – Smart digital display faucet provides real-time TDS readings, water quality monitoring, and filter lifespan status.

  • 省スペース設計 – Compact undersink installation (427 × 148 × 346 mm) keeps your countertop clutter-free.

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商品説明

Pure Water. Smart Living.

について HW03 Series combines PPC composite filtration, reverse osmosis and digital controls in an under-sink platform for household drinking-water treatment.
With high-performance RO technology, Grade 1 water efficiency, and a compact undersink design (427 × 148 × 346 mm), it’s the ideal upgrade for a modern, healthy lifestyle.

hw03 serise(1)

Why Choose HW03 Series?

1. Superior Filtration Technology
PPC composite filtration and reverse osmosis provide a multi-stage water treatment approach. Specific contaminant-reduction performance must be evaluated against the applicable model and test conditions.
2. High-Speed Water Output
Enjoy instant access to purified water with flow rates up to 2.1L/min, perfect for cooking, drinking, and making beverages without waiting.
3. Smart, Intuitive Control
Equipped with a digital display faucet to monitor water quality, TDS levels, and filter lifespan in real time.
4. Energy & Water Efficient
Grade 1 water efficiency with a 2:1 pure-to-waste water ratio, reducing water waste while maintaining optimal performance.
5. Quiet & Space-Saving
Ultra-low noise operation at ≤55dB(A) and a compact undersink design keep your kitchen peaceful and uncluttered.
6. Built for Modern Lifestyles
Sleek, minimalist look with heated faucet options for versatile use, from brewing tea to preparing baby formula.

仕様

モデル

HW03-600

HW03-800

Input Voltage

110-220V(AC)

Output Voltage

36V

ノイズ

≤55 dB(A)

Rated Total Water Capacity

4800L

Flux

600GPD

800GPD

Water Production Rate

1.58L/min

2.1L/min

フィルター

2 Filters (PPC composite + RO membrane)

Inlet Water Temperature

5-38°C

Pure to Waste Water Ratio

2:1

Inlet Pressure

0.1-0.4MPa

Water Efficiency Grade

Grade 1

Faucet Types

Smart digital display faucet / Heated faucet

所在地

Undersink

寸法

427×148×346mm

関連文書ダウンロード

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Request Details for HW03 Series – Premium Undersink Water Purifier

Discuss the exact configuration, installation requirements, current specifications and applicable test documentation for this water product.

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Contaminant Engineering•3 min read

PFAS Water Filtration Technologies Explained: Carbon, Resin & RO

Key Takeaway:

PFAS reduction depends on the specific compounds present, treatment media, contact time, water chemistry, and system design. Activated carbon, ion exchange, and Reverse Osmosis address PFAS through different mechanisms.

PFAS are a large family of persistent fluorinated compounds that can occur in drinking-water supplies. Their treatment behavior varies significantly by molecular structure, chain length, functional group, concentration, and the chemistry of the source water.

Granular Activated Carbon (GAC) removes PFAS primarily through adsorption. It is generally more effective for many longer-chain PFAS, while shorter-chain compounds tend to break through more quickly. Carbon performance depends on media properties, Empty Bed Contact Time (EBCT), competing organic matter, loading, and replacement frequency.

Ion-exchange resins use charged functional sites to capture many PFAS compounds. Properly selected anion-exchange media can provide high capacity and may perform better than conventional activated carbon for some shorter-chain PFAS, although performance still depends on water chemistry and competing ions.

Reverse Osmosis (RO) uses membrane separation rather than adsorption. Properly designed RO systems can provide broad reduction across many PFAS compounds as well as dissolved salts and other contaminants. Unlike carbon or resin, however, RO also produces a concentrate stream that must be managed.

No single technology should be selected from a PFAS label alone. System design should consider which PFAS compounds are present, their concentrations, required reduction targets, flow rate, media life, and the applicable third-party certification or validation requirements.

HisoAir Water Technical Series
Product Discovery•3 min read

How to Choose an Under-Sink Water Purifier for Modern Kitchens

Key Takeaway:

Match the treatment technology to your water quality first, then evaluate cabinet space, faucet configuration, flow rate, drain and power requirements, and filter replacement needs.

Choosing an under-sink water purifier starts with water chemistry. Carbon filtration is well suited to chlorine, taste, odor, and many organic contaminants, while Reverse Osmosis is more appropriate when dissolved salts, fluoride, nitrates, or broader dissolved contaminants need to be reduced.

For compact kitchens, tankless RO systems eliminate the conventional storage tank and can significantly reduce the space required under the sink. However, membrane capacity stated in GPD does not directly equal faucet flow. When comparing systems, check the actual dispensing flow rate, inlet-pressure requirement, recovery ratio, and whether a booster pump is required.

Installation architecture also matters. Many RO systems require a drain connection, electrical power, and either a dedicated drinking-water faucet or a compatible multi-function faucet. High-flow carbon systems can often connect directly to the existing cold-water line with a simpler installation, but pressure drop and available faucet flow should still be verified.

RO also removes much of the naturally occurring dissolved mineral content. Where taste or mineral balance is a priority, a post-RO remineralization stage can be added. Filter life should be evaluated by both rated capacity and local water quality rather than replacement time alone.

The right system is therefore not simply the smallest or highest-GPD model. It is the configuration that matches the target contaminants, available cabinet space, desired faucet setup, peak dispensing demand, and maintenance expectations.

HisoAir Water Technical Series
Water Quality•2 min read

What Does TDS Mean in Drinking Water? Measurement vs Contaminant Reality

Key Takeaway:

A TDS meter estimates the overall concentration of dissolved ionic substances from electrical conductivity. It cannot identify specific contaminants or determine whether water is chemically safe.

Total Dissolved Solids (TDS) refers to the combined concentration of dissolved substances in water. Most handheld TDS meters do not measure TDS directly. Instead, they measure electrical conductivity (EC) and convert that reading into an estimated parts-per-million (ppm) value.

This means a TDS reading can indicate how much dissolved ionic material is present, but not what that material actually is. Calcium, magnesium, sodium, nitrates, and other dissolved ions can all contribute to conductivity, yet a simple TDS meter cannot distinguish between them.

TDS meters are also not suitable for detecting trace contaminants such as PFAS, many VOCs, pesticides, pharmaceuticals, or disinfection byproducts. These substances may be present at concentrations far below the level needed to noticeably change electrical conductivity.

A low TDS reading therefore does not guarantee safe drinking water, and a higher TDS reading does not automatically indicate contamination. Water-treatment decisions should be based on laboratory testing for specific contaminants of concern rather than TDS alone.

HisoAir Water Technical Series
Technology Selection•2 min read

RO vs UF Water Filtration: Understanding Pore Sizes & Dissolved Minerals

Key Takeaway:

Ultrafiltration can reduce bacteria, turbidity, and suspended particles while retaining most naturally occurring dissolved minerals. Reverse Osmosis provides much broader reduction of dissolved salts and smaller contaminants.

Ultrafiltration (UF) typically uses hollow-fiber membranes with pore sizes in the approximate 0.01–0.1 micron range. These membranes physically retain turbidity, suspended solids, colloids, and many microorganisms while allowing dissolved minerals and salts to remain in the water.

Reverse Osmosis (RO) operates at a much finer separation level. Unlike UF, RO can substantially reduce dissolved ions such as sodium, calcium, fluoride, nitrates, and other contributors to total dissolved solids (TDS). This makes RO more suitable when dissolved-salt reduction is a primary treatment objective.

UF generally requires less system pressure and produces little or no continuous concentrate stream in many point-of-use configurations. RO typically requires greater pressure and produces a reject-water stream, but delivers broader contaminant reduction.

For water with acceptable TDS and mineral content, UF can be a simpler mineral-retaining treatment option. Where dissolved salts, fluoride, nitrates, or broader dissolved contaminants are a concern, RO is generally the more appropriate technology.

HisoAir Water Technical Series
Technology Selection•4 min read

Carbon Block vs Reverse Osmosis: Which Fits Your Need?

Key Takeaway:

Choose RO for dissolved inorganic salts and heavy metals; choose Carbon Block for chemical taste/odor, no wastewater, and high line-pressure flow.

Reverse Osmosis (RO) and Carbon Block filtration represent two fundamentally different treatment methods: membrane separation and adsorption. Understanding these differences helps determine which technology is better suited to a specific water-quality requirement.

Reverse Osmosis uses a semi-permeable membrane with pore sizes of approximately 0.0001 microns. It can significantly reduce dissolved inorganic contaminants such as TDS, fluoride, nitrates, and certain heavy metals. Because water must be forced through the membrane, RO systems require sufficient pressure or a booster pump and generate a concentrated wastewater stream.

Carbon Block filtration relies primarily on adsorption through compressed activated carbon, commonly with nominal pore sizes around 0.5–5 microns. It is highly effective for chlorine, chloramines, VOCs, taste, and odor, while allowing substantially higher direct-flow rates without producing wastewater.

From an operating perspective, Carbon Block systems are generally simpler, require less energy, and avoid the water loss associated with RO. RO involves higher system complexity and operating cost, but provides substantially broader reduction of dissolved contaminants that Carbon Block alone cannot address.

HisoAir Water Technical Series

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