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革新的な空気品質ソリューション

ニュース

高度な空気清浄機と医療機器を備えた近代的な病室

病院に最適な空気清浄機とその選び方とは？

病院に適した空気清浄機を選ぶことは、安全で清潔な環境を維持するために非常に重要です。医療グレードのHEPA 14フィルターは、有害なバクテリアや細菌を効果的に除去します。
2024-11-21
ニュース
製品を組み立てる作業員がいる中国の空気清浄機製造工場の内部。

なぜ中国の空気清浄機メーカーとの提携を検討すべきなのか？

中国の空気清浄機メーカーと協力することで、最先端技術へのアクセス、低い生産コスト、効率的なサプライチェーンなど、数多くの利点が得られます。これらの製造業者は、中国における空気清浄機製造のリーディング・カンパニーとして知られています。
2024-11-21
ニュース
明るいモダンなリビングルームに置かれた、洗練された空気清浄機。

なぜ中国の空気清浄機メーカーとの提携を検討すべきなのか？

このブログでは、中国の空気清浄機メーカーと提携するメリットについてご紹介します。先進的な技術、競争力のある価格、安定した供給体制における中国のリーダーシップに注目しています。
2024-11-21
ニュース
モダンで洗練された空気清浄機と、伝統的で職人技が光る空気清浄機。

より優れた空気清浄機を生産している国はどこか？中国とパキスタン

本稿では、空気清浄機市場における中国とパキスタンの競争について考察する。中国は現在、その先進的な技術と効率的な生産体制により、圧倒的な生産量を誇っている。
2024-11-21
ニュース
空気清浄機のフィルターのクローズアップ。

現代の空気清浄機に高効率フィルターが不可欠な理由とは？

High-efficiency filters such as HEPA 13 and HEPA 14 are essential in modern air purifiers, effectively trapping over 99.997% of airborne particles including dust and ...
2024-11-20
ニュース
木製テーブルの上に空気清浄機と加湿器が置かれたモダンなリビングルーム

加湿器は空気清浄機にどのような影響を与えますか？

The interaction between humidifiers and air purifiers is crucial for maintaining good indoor air quality. Ultrasonic humidifiers can release harmful particles that confuse air purifier ...
2024-11-20
ニュース
壁掛けの空気清浄機と大きな窓のある明るいモダンな教室

学校や教室に最適な空気清浄機は？

Choosing the right air purifier for schools is crucial for maintaining a healthy learning environment. HisoAir models excel with their advanced filtration systems, quiet operation, ...
2024-11-20
ニュース
明るいリビングルームにモダンな空気清浄機

カビアレルギー対策に最適な空気清浄機とは？

Mold allergies can significantly impact health, causing sneezing and respiratory issues. To combat these allergies, it's crucial to choose air purifiers equipped with True HEPA ...
2024-11-20
ニュース
大きな窓のある明るいリビングルームに設置された洗練された空気清浄機

米国で空気清浄機ブランドを立ち上げるにはどれくらいの投資が必要か？

Starting an air purifier brand in the US involves significant investment ranging from $50,000 to $100,000. This budget covers essential areas such as product development, ...
2024-11-20
ニュース
世界貿易地図と関税を備えた最新の空気清浄機

中国から米国へ空気清浄機を輸入する際の関税は？

Currently, importing air purifiers from China to the US incurs no tariffs until May 30, 2025. However, potential future tariffs could reach up to 60%, ...
2024-11-17
ニュース
明るく開放的なオフィスの壁面に設置されたモダンな空気清浄機。

業務用空気清浄機で考慮すべき主な機能とは？

Choosing the right commercial air purifier is crucial for maintaining a healthy environment in workplaces like offices, gyms, and hotels. Key features to consider include ...
2024-11-17
ニュース
空気清浄機と空調システムを備えたモダンなリビングルーム

空気清浄機と従来の空調システム：空気清浄機と従来のHVACシステム？

空気濾過のために空気清浄機とHVACシステムのどちらを選ぶかは難しいことだ。HEPAフィルターを搭載した空気清浄機は、小さなアレルゲンや汚染物質を効果的に捕捉します。
2024-11-17
ニュース
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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