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Wie man Rauchgeruch aus dem Auto bekommt: 5 Arbeitsmethoden

Wie man Rauchgeruch aus dem Auto bekommt: 5 Arbeitsmethoden

It is not easy to remove the pungent smoke smell in your car. It is clingy and requires rigid removal strategies. Fortunately, we got you ...
2022-06-28
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Wie man Radon loswird 5 der effektivsten Methoden, die Sie ausprobieren sollten

Wie man Radon loswird: Die 5 wirksamsten Methoden, die Sie ausprobieren sollten

Radon is a natural gas. However, the danger comes once it enters your home and begins to grow and increase. Learn how to remove and ...
2022-06-28
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Luftreiniger für Schimmelpilze

Luftreiniger für Schimmelpilze

HisoAir is a professional air purifier manufacturer with more than ten years of experience. The company focuses on air disinfection machines and air purifier OEM/ODM ...
2022-06-11
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Grasgeruch loswerden: 5 bewährte Methoden zum Ausprobieren

Grasgeruch loswerden: 5 bewährte Methoden zum Ausprobieren

When it comes to removing weed smell, ordinary methods may not work effectively. You should do special odor-removal techniques to ensure that the lingering scent ...
2022-06-07
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Wo werden die iDer-Luftreiniger hergestellt?

Wo werden die iDer-Luftreiniger hergestellt?

Wahrscheinlich haben Sie noch nie von den Luftreinigern der Marke iDer gehört. Aber diejenigen, die diesen Luftreiniger verwendet haben, erwähnten, dass sie ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Honeywell-Logo

Wo werden Honeywell-Luftreiniger hergestellt?

Honeywell ist heute eine der bekanntesten Marken für Luftreiniger. Sie setzt den Standard für HEPA-Luftreiniger; sogar die HisoAir-Luftreiniger ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Top 3 China Ozon Generator Luftreiniger Hersteller

Top 3 China Ozon Generator Luftreiniger Hersteller

Ozongeneratoren gelten als Alternative zu herkömmlichen Luftreinigern, die Filtersysteme verwenden. Diese Geräte erzeugen Ozon, das wiederum zur Neutralisierung von ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Top 4 Hersteller von AHAM zertifizierten Luftreinigern heute

Top-Hersteller von AHAM-zertifizierten Luftreinigern heute

Wenn es um Luftreiniger geht, sind Zertifizierungen durch Dritte ein Muss. Diese Bewertungen und Nachweise lassen die Verbraucher wissen, dass ein bestimmter Luftreiniger tüchtig ist ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Die besten Hersteller elektrostatischer Luftfilter in der Welt

Die besten Hersteller elektrostatischer Luftfilter in der Welt

Suchen Sie nach Herstellern von elektrostatischen Luftfiltern, um elektrostatische Luftfilter zu kaufen? Erfahren Sie mehr über diese Filter und sehen Sie, welche Hersteller heute in der Herstellung dieser ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Die 4 besten Hersteller plissierter Luftfilter in der Welt

Die 4 besten Hersteller plissierter Luftfilter in der Welt

Plissierte Luftfilter sind besser als die üblichen mechanischen Filter. Wenn Sie also auf der Suche nach einem Ersatz-Vorfilter für Ihren Luftreiniger sind, sollten Sie ...
2022-05-30
Luftreiniger Hersteller, Nachrichten
Top 6 Hersteller von tragbaren Luftreinigern

Top 6 Hersteller von tragbaren Luftreinigern

Der Markt für tragbare Luftreiniger hat eine enorme Bewertung von mehr als 8,27 USD im Jahr 2019, und es wird erwartet, dass er in ...
2022-05-19
Luftreiniger Hersteller, Nachrichten
5 Beste Mini-Luftreiniger Hersteller

5 Beste Mini-Luftreiniger Hersteller

Luftreiniger können helfen, schädliche Partikel und Viren aus der Atemluft zu entfernen. Auch Mini-Luftreiniger verwenden die gleichen Technologien. Wir haben ...
2022-05-19
Luftreiniger Hersteller, Nachrichten
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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