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Global Institutional Projects, Institutional IEQ Solutions

Supporting a Global WELL Ecosystem Partner with Integrated Air and Water Solutions

HisoAir supported a confidential institutional partner with integrated air and water purification solutions for WELL-aligned buildings, corporate facilities, and large-scale housing projects.
A modern gray air purifier with a minimalist design and textured fabric exterior, featuring a top air vent for filtration.

TARGET AUDIENCE

Institutional Projects

SOLUTION AREA

Air & Water Purification

KEY TECH

Sensor Integration

PRODUCTION

ODM Development & Scalable Manufacturing

Our Involvement

System-Level Product Development

ODM Co-Development

Hardware & Firmware Engineering

Sensor Integration

Certification Support

Supply Chain Integration

Manufacturing & Quality Control

Project Overview

Company

Confidential Institutional Client

Sede centrale

Global WELL Ecosystem Partner

Market

Institutional Projects, Corporate Buildings, Military Housing

Prodotti

Desktop Air Purifier, Wall Mounted Air Purifier, Water Purification System

Background

The client is closely connected with the International WELL Building Institute ecosystem and works with a wide range of institutional and system-level customers, including corporate organizations, large facilities, and government-related projects.

Products used in these environments must meet strict indoor environmental quality standards aligned with WELL certification principles, which focus on improving health and wellness within buildings.

Because of the complexity of these projects, the client required a long-term partner capable of supporting high-performance environmental technology products, including both air and water solutions.

HisoAir began collaborating with the client over four years ago, establishing a deep partnership focused on innovation and system-level product development.

❞
"Rather than developing a single standalone device, the client needed a long-term system-level partner capable of supporting air, water, sensor integration, and scalable institutional deployment."

The Idea

The collaboration initially focused on developing a desktop air purifier tailored for high-end institutional and wellness-focused environments.

The product needed to support indoor environmental quality requirements commonly associated with WELL-certified buildings.

The partnership later expanded to include:

  • Advanced air purification solutions
  • Wall mounted air purification systems
  • Integrated environmental monitoring technologies
  • Water purification system development
  • Large-scale institutional applications

Most recently, the client introduced HisoAir’s latest wall mounted air purifier platform into large-scale institutional applications, including military housing environments.

The Challenge

Projects serving institutional and system-level customers involve significantly higher complexity compared to standard consumer products.

WELL Standard Requirements
Products needed to align with environmental performance expectations consistent with WELL building certification, especially around indoor air quality and occupant health.

Deep Technical Integration
The systems required close integration across hardware engineering, firmware development, environmental sensors, and filtration performance optimization.

Institutional Deployment Scale
Products deployed in institutional environments must meet strict requirements for reliability, performance consistency, and supply stability.

Long-Term Product Evolution
Unlike one-time product launches, the partnership required continuous product development and technology upgrades across multiple product generations.

The HisoAir Solution

HisoAir worked closely with the client to support the project through deep engineering collaboration and long-term technology development.

ODM Co-Development
The collaboration began with the co-development of a desktop air purifier, involving joint work on hardware design, firmware development, and performance optimization.

Advanced Engineering Integration
HisoAir provided integrated expertise across hardware system design, embedded firmware development, environmental sensor integration, and air purification performance optimization.

Scalable Manufacturing & Supply Chain
To support institutional deployments, HisoAir established a stable manufacturing and supply chain framework capable of delivering consistent product quality at scale.

Expansion to New Product Categories
As the partnership matured, the collaboration expanded beyond air purification to include water purification solutions, reflecting the shared goal of improving indoor environmental health.

The Results

Over four years of collaboration, the partnership has successfully delivered multiple environmental technology products for institutional environments.

The collaboration continues to expand into new product areas, including water purification solutions, reflecting the long-term strategic partnership between both teams.

Key Achievements Include:

☑ Successful ODM development of a desktop air purifier
☑ Integration of advanced sensor and firmware systems
☑ Large-scale deployment of wall mounted air purifiers in institutional housing projects
☑ Cumulative deployments reaching tens of thousands of units
☑ Expansion from air purification into water purification solutions
☑ Long-term system-level partnership supporting institutional IEQ projects

Conclusione

The collaboration between the client and HisoAir demonstrates the value of long-term engineering partnerships in developing advanced environmental health technologies.

Through deep collaboration in hardware, firmware, sensor integration, and supply chain management, HisoAir has supported the client in delivering high-performance environmental solutions aligned with modern building wellness standards.

This case highlights HisoAir’s ability to support system-level partners serving institutional and large-scale environments, delivering technology solutions that improve indoor health and environmental quality.

Our Involvement

System-Level Product Development

ODM Co-Development

Hardware & Firmware Engineering

Sensor Integration

Certification Support

Supply Chain Integration

Manufacturing & Quality Control

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Contatto
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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