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ceiling air purifier ha1002

Ceiling Air Purifier HA1002

Powerful & Quiet Operation The HA1002 ceiling air purifier offers high-efficiency purification with ultra-low noise, ranging from just 36dBA at low speed to 63dBA at ...
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천장형 공기 청정기
ceiling air purifier ha2000

Ceiling Air Purifier HA2000

HIGH-CAPACITY CEILING PURIFICATION High-Airflow Purification for Larger Commercial Spaces The HA2000 is a high-capacity ceiling-mounted air purifier designed for larger commercial environments where strong airflow, ...
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천장형 공기 청정기
stainless humidifier & air purifier

3-in-1 Air Purifier & Humidifier & Diffuser HA-M182D

Ultra-Sensitive Smart Sensing System, Real-time Air Quality Monitoring. When the air purifier is turned on, it automatically senses air quality. An increasing value indicates worsening ...
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Air Purifiers, Combo, Humidifier with Air Purifier
pet air purifier ha d3002

Pet Air Purifier HA-D3002

Designed for Pet-Friendly Homes Say goodbye to pet dander, fur, and unwanted odors. The HA-D3002 is specially engineered to tackle air quality challenges in pet ...
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반려동물 공기청정기
standing & wall mounted air purifier ha200 & ha400

Standing & Wall-Mounted Air Purifier HA200 & HA400 (ABS panel)

🛠 Dual Installation – Wall-Mounted or Freestanding Choose from three versatile mounting options: vertical wall-mount, horizontal wall-mount, or freestanding with an optional base. Perfect for ...
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Air Purifiers, Residential Air Purifier, Wall Mounted Air Purifiers
2 in 1 desktop air purifier & humidifier ha m70

Desktop Pet Air purifier HA65

Triple Filtration for Pet Breathing Safety Removable Pre-Filter Layer: The initial filter material fiber structure is designed to effectively absorb pet floating hair, keeping your ...
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Air Purifiers, Pet Air Purifier
ha m18d

3-in-1 Air Purifier & Humidifier & Diffuser HA-M18D

Ultra-Sensitive Smart Sensing System, Real-time Air Quality Monitoring. When the air purifier is turned on, it automatically senses air quality. An increasing value indicates worsening ...
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Air Purifiers, Combo, Humidifier with Air Purifier
standing & wall mounted air purifier ha180 & ha380 (fabric panel)

Standing & Wall-Mounted Air Purifier HA180 & HA380 (Fabric panel)

🛠 Dual Installation – Wall-Mounted or Freestanding Choose from three versatile mounting options: vertical wall-mount, horizontal wall-mount, or freestanding with an optional base. Perfect for ...
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Air Purifiers, Residential Air Purifier, Wall Mounted Air Purifiers
공기 청정기가 있는 가습기 HA M800

3-in-1공기청정기 & 가습기 & 디퓨저 HA-M800D

HA-M800D는 하나의 컴팩트한 솔루션으로 편안함, 건강, 최신 기술을 추구하는 사람들을 위해 설계되었습니다. 강력한 성능으로 실내 환경을 변화시키세요 ...
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공기청정기, 가습기, 공기청정기, 가습기, 가습기
에너지 회수 시스템 S380

에너지 회수 시스템 HV S380

효율적인 에너지 회수 HV S280은 고효율 열교환기를 활용하여 배출되는 공기에서 최대 85%의 열 에너지를 회수하여 크게 줄입니다 ...
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공기 청정기, 에너지 회수 시스템
에너지 회수 시스템 S280

에너지 회수 시스템 S280

효율적인 에너지 회수 HV S280은 고효율 열교환기를 활용하여 배출되는 공기에서 최대 85%의 열 에너지를 회수하여 크게 줄입니다 ...
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공기 청정기, 에너지 회수 시스템
에너지 회수 시스템 HV S250

에너지 회수 시스템 HV-S250

효율적인 에너지 회수 HV-S250은 고효율 열교환기를 사용하여 배출 된 공기에서 최대 85%의 열 에너지를 회수하여 난방을 줄이고 ...
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공기 청정기, 에너지 회수 시스템
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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