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필립스 공기청정기 리뷰

필립스 공기청정기 리뷰

인기 판매중인 필립스 공기 청정기 모델을 확인하여 사양, 기능 및 성능을 비교하고 이상적인 필립스 공기 청정기를 찾을 수 있습니다 ...
2022-09-01
공기청정기 리뷰, 뉴스
Alen

최고의 알렌 브리즈스마트 공기청정기 HEPA 리뷰 5가지

오늘날 시장에는 많은 공기청정기 제조업체가 존재합니다. 여기에서는 인체 공학적으로 설계된 공기 청정기 제조업체인 Alen을 소개합니다.
2022-08-16
공기청정기 리뷰, 뉴스
공기 필터 MERV 등급이란 무엇이며 왜 중요한가?

공기 필터 MERV 등급: 무엇이며 왜 중요한가요?

HVAC 가전제품과 공기청정기에 설치된 공기 필터는 품질과 구조가 동일하지 않습니다. 이러한 필터를 분석하는 한 가지 방법은 ...
2022-07-27
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정말 효과가 좋은 최고의 먼지용 공기청정기 4가지

정말 효과가 좋은 최고의 먼지용 공기청정기 4가지

공기 여과를 통해 깨끗한 공기를 마시려면 공기청정기를 구입하는 것이 중요합니다. 이러한 장치는 먼지 및 기타 오염 물질을 제거하여 공기를 정화하며, ...
2022-07-27
공기청정기 리뷰, 뉴스
최악의 생활 악취를 없애는 4가지 최고의 VOC 공기청정기

최고의 VOC 공기청정기 4가지: 최악의 생활 악취 제거하기

최고의 VOC 공기청정기를 사용하면 더 쉽게 숨을 쉬고, 더 잘 자고, 더 건강한 환경에서 휴식을 취할 수 있습니다. 최고의 VOC 공기청정기는 ...
2022-07-27
공기청정기 리뷰, 뉴스
반려동물 냄새 제거를 위한 최고의 반려동물용 공기청정기 4가지

반려동물 냄새 제거를 위한 최고의 반려동물용 공기청정기

반려동물 보호자를 위한 최고의 공기청정기는 질병을 줄여주는 깨끗하고 건강한 공기를 위한 최고의 솔루션입니다. 우리가 얼마나 사랑하는지에도 불구하고 ...
2022-07-21
공기청정기 리뷰, 뉴스
고양이 알레르기를 자연적으로 제거하는 5가지 효과적인 방법 잡초 냄새 제거: 집에서 포름알데히드를 제거하는 5가지 입증된 방법: 효과적인 5가지 쉬운 방법

알레르기 두통을 없애는 방법: 효과적인 치료법 5가지

알레르기 두통은 성가시고 지속적입니다. 그렇기 때문에 알레르기 두통을 없애기 위해서는 장기적인 완화가 필수적입니다. 계속 읽고 ...
2022-07-11
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요리 냄새를 없애는 방법: 시도해 볼 5가지 스마트 솔루션

요리 냄새를 없애는 방법: 시도해 볼 5가지 스마트 솔루션

Cooking is such a delight. But the mess, especially the smell, that comes after it is a little bit taxing to remove. Fortunately, there are ...
2022-07-11
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가정에서 포름알데히드를 제거하는 방법: 효과적인 5가지 쉬운 방법

가정에서 포름알데히드를 제거하는 방법: 효과적인 5가지 쉬운 방법

Formaldehyde is a type of volatile organic compound (VOC) that is commonly present in residential spaces. Unfortunately, exposure to them can be a bit harmful. ...
2022-07-09
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현대 벽 장식 벽을 현대화하는 방법

반려동물을 위한 최고의 공기청정기 4종

You love your pet, but they make you sneeze. Find the best air purifier for pets and stop worrying about odors and allergens. Air purifiers ...
2022-07-08
공기청정기 리뷰, 뉴스
계절성 알레르기를 없애는 방법 5가지 최고의 완화 방법 (1)

계절성 알레르기를 없애는 방법: 알레르기를 완화하는 5가지 최고의 방법

Seasonal allergies can be frustrating and potentially dangerous. While they don't have a cure, there are effective means of preventing and treating them. We have ...
2022-06-29
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자동차에서 연기 냄새 없애는 방법: 5가지 작업 방법

자동차에서 연기 냄새 없애는 방법: 5가지 작업 방법

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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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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