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革新的な空気品質ソリューション

空気清浄機メーカー

世界最大の空気清浄機メーカー7社

世界最大の空気清浄機メーカー7社

2021年現在、空気清浄機の世界市場の評価額はおよそ126億米ドルで、2022年以降飛躍的に上昇すると予測されている。...
2022-05-19
空気清浄機メーカー, ニュース
HEPAフィルターメーカートップ6

HEPAフィルターメーカートップ6

最高の空気清浄機メーカーは、より徹底した粒子除去率を実現するため、製品の設計にHEPAフィルターを使用している。このページで ...
2022-05-19
空気清浄機メーカー, ニュース
ドバイの空気清浄機サプライヤー 5 社

ドバイの空気清浄機サプライヤー 5 社

高度に都市化された場所は大気汚染量が多く、病気や健康問題につながる可能性がある。優れた空気清浄機で掃除することで、空気汚染を防ぐことができる。
2022-05-19
空気清浄機メーカー, ニュース
パキスタンのエアフィルター・メーカー トップ5

パキスタンのエアフィルター・メーカー トップ5

Air pollution can damage health, and removing all those unseen particles from the atmosphere can be done with quality air purifiers and filters. Know about ...
2022-05-19
空気清浄機メーカー, ニュース
ドイツのエアフィルター会社ベスト6

ドイツのエアフィルター会社ベスト6

Removing dust and other particles from the air is necessary to keep illnesses away. Air filters either used in air purifiers or installed directly to ...
2022-05-19
空気清浄機メーカー, ニュース
日本の空気清浄機メーカートップ5

日本の空気清浄機メーカートップ5

Cleaning the air of particulate contaminants can help reduce the risk of diseases and illnesses brought about by chemicals, viruses, bacteria, and more. We listed ...
2022-05-18
空気清浄機メーカー, ニュース
シンガポールの空気清浄機サプライヤー トップ5

シンガポールの空気清浄機サプライヤー トップ5

Cleaning air inside a home or any other space with quality air purifiers can help prevent diseases and illnesses brought about by air pollution and ...
2022-05-18
空気清浄機メーカー, ニュース
韓国の空気清浄機メーカー5社

韓国の空気清浄機メーカー5社

Air pollution can cause diseases and even death, and eliminating it with quality air purifiers can help prevent such cases. Learn about the best Korean ...
2022-05-18
空気清浄機メーカー, ニュース
カナダの空気清浄機メーカー ベスト4

カナダの空気清浄機メーカー ベスト4

Air purifiers are sought-after for the sole reason of cleaning what people breathe in and out. They undoubtedly solve the potential health problems caused by ...
2022-05-18
空気清浄機メーカー, ニュース
インドの空気清浄機メーカー トップ5

インドの空気清浄機メーカー トップ5

The world’s air quality deteriorates by the minute, and products like air purifiers can help people avoid diseases from the pollutants present in what they ...
2022-05-18
空気清浄機メーカー, ニュース
ヒソエア1601

中国の空気清浄機メーカー トップ4

If you need to get large numbers of high-quality air purifiers, connecting with the various top companies who produce them would be in the best ...
2022-05-18
空気清浄機メーカー, ニュース
寝室の空気清浄機

Top 12 World-Class Air Purifier Brands (2026) HEPA

空気清浄機選びでお悩みですか？最高のHEPA空気清浄機の正直なレビューをご覧ください。
2021-04-05
空気清浄機メーカー, 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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