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革新的な空気品質ソリューション

ニュース

OSHA基準を満たすオフィス環境での業務用空気清浄機

商業プロジェクトで空気清浄機がOSHA基準を満たしていることを確認するには？

Navigating OSHA standards for commercial air purifiers involves understanding performance indicators, safety requirements, and maintenance procedures. It's crucial for facility managers to ensure these devices ...
2024-11-05
ニュース
空気清浄機の透明な価格詳細を分析する小売業者

なぜ空気清浄機サプライヤーは小売業者にとって価格の透明性が重要なのか？

Retailers benefit greatly from pricing transparency offered by air purifier suppliers. It aids in informed decision-making, aligns with consumer expectations, and fosters trust. This article ...
2024-11-05
ニュース
中国とベトナムの空気清浄機工場労働者

空気清浄機の生産は中国とベトナムのどちらが良いか？

Exploring whether China or Vietnam is more strategic for air purifier production involves examining factors like cost implications, supply chain infrastructure, and quality standards. China's ...
2024-11-05
ニュース
天井に取り付けられたヒソエア空気清浄機、グリーンのカーテン、白い棚、ミニマルな家具が置かれたモダンなオフィス空間。

HEPAフィルター空気清浄機とは？

A spacious, well-lit office with a hisoair ceiling-mounted air purifier installed for enhanced air quality. Introduction HEPA filters are a popular choice in air purification, ...
2024-11-01
ニュース
近代的な工場で空気清浄機を組み立てる作業員たち

空気清浄機の製造方法

空気清浄機の製造には、研究開発（R&D）から品質テスト、量産に至るまで、一連の複雑な工程が含まれる。大気汚染と...
2024-11-01
ニュース, 未分類
室内空気から微粒子やアレルゲンを除去する空気清浄機用高効率HEPAフィルター

HEPAフィルター空気清浄機とは？

HEPA filters are a popular choice in air purification, used to capture airborne particles effectively and improve air quality across various environments. In recent years, ...
2024-11-01
ニュース
空気清浄機と除湿機

空気清浄機と除湿機の比較：比較と違い

画像出典：iStockPhoto 空気清浄機と除湿機は、現代の家庭で人気のある2つの家電製品だ。その主な目的は、室内の空気を ...
2022-10-31
Air purifier, Dehumidifier, News
2022年における空気清浄機と加湿器の比較

Air purifier vs Air humidifier: Which is better?

画像ソースHome Air Advisor 空気清浄機と加湿器は、今日の代表的な家庭用品です。どちらも実用的な用途があり、室内の空気の質を向上させる。しかし
2022-10-31
Air purifier, Humidifier, News
くしゃみをする少女

米国におけるアレルギーのベスト＆ワースト州

画像ソースニュース・メディカル 毎年春になると、水っぽい目、鼻水、絶え間ない掻破を伴う大規模なくしゃみ発作が起こる。ほとんどの人にとって、このようなくしゃみ発作は、「くしゃみ」、「鼻水」、「痒み」を伴うものである。
2022-10-31
Air purifier, News
静電エアフィルターの仕組み

フィルター交換：静電エアフィルターとHEPAの比較

Air filters like wall mounted ones such as electrostatic and HEPA types are made to combat air pollutants such as pollen, pet dander, dust, etc. ...
2022-10-31
Air purifier, News
イオンフィルターの長所

イオン式空気清浄機 vs ヘパ式空気清浄機：どちらがより安全で優れているか？

画像ソースPinterest 画像ソース：Hisoair 小部屋用のイオン式空気清浄機、または大部屋用のHEPA式空気清浄機、一般的に人気のある空気清浄システム ...
2022-10-31
Air purifier, News
286平方フィート用空気清浄機（Hisoair HA-380）

世界最高の空気清浄機メーカー

空気清浄機は、現代の生活環境において最も必要なものである。空気中のウイルスや病気を引き起こす物質は、適切な空気清浄機によって除去することができる。
2022-10-22
Air purifier, News
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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