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Innovative Air Quality Solutions
CONNECTED PRODUCT ENGINEERING

IoT Integration & Embedded Development

Build connected air, water, and environmental products faster with flexible IoT architecture, embedded firmware, protocol integration, and customer-platform support.
Tuya Integration
Matter over Thread
Embedded Firmware
Customer Platform Integration
Discuss Your IoT ProjectExplore Development Routes
Smart air purifier connected to a smartphone for control, showcasing features and integration with circuit board details.
CONNECTIVITYWi-Fi / Bluetooth / Thread
PLATFORMTuya / Customer Cloud / API
DEVELOPMENTFirmware / Sensors / Protocols
INTEGRATIONApp / Gateway / Customer Platform

How Our IoT Development Works

From connectivity requirements to firmware integration, validation, and production deployment.
Requirements

Define product functions, connectivity, platform, ecosystem, and target market.

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Architecture

Select the communication route, module, MCU, cloud platform, and integration approach.

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Firmware

Develop device logic, sensor drivers, communication protocols, and control functions.

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Integration

Connect the device with App, cloud, gateway, API, or customer platform.

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Validation

Verify connectivity, device control, data reporting, interoperability, and OTA functions.

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Production

Finalize production firmware, programming, validation, and mass-production deployment.

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Tuya Fast Launch
Customer Platform
Matter over Thread
Embedded Development
Pre-Compliance Testing

Tuya Integration for Faster Product Launches

For brands that need to bring a connected product to market quickly, HisoAir can develop products based on the Tuya ecosystem using established connectivity, cloud, App, device-management, and OTA infrastructure.
SUPPORTED FUNCTIONS

Wi-Fi and Bluetooth connectivity
Device network configuration
Mobile App control
Real-time device status
Fan speed and mode control
Sensor data display
Filter-life monitoring
Timers and schedules
Notifications
Firmware OTA

PROJECT OPTIONS

Customer-branded OEM App
Standard smart-product functions
Device sharing
Cloud-connected device management
Product-specific function configuration
Faster development route
Lower initial software investment

EVIDENCEAnechoic Chamber Data
Pre-Compliance Testing

Customer Platform & Cloud Integration

For customers with an existing App, cloud platform, gateway, or control system, HisoAir can adapt device firmware and communication protocols to support integration with the customer's own IoT architecture.
INTEGRATION SCOPE

For customers with an existing App, cloud platform, gateway, or control system, HisoAir can adapt device firmware and communication protocols to support integration with the customer’s own IoT architecture.

CUSTOM ARCHITECTURE

Customer-owned IoT architecture
Customized device functions
Private communication protocols
Server integration
Device-management systems
Project-based App development
Project-based cloud development
Data and platform ownership strategy

EVIDENCEAnechoic Chamber Data
Pre-Compliance Testing

Matter over Thread Integration Support

Support for connected products that require coordination between communication modules, embedded firmware, Thread networks, gateways, applications, and Matter ecosystems.
ENGINEERING SUPPORT

Matter feasibility evaluation
Thread module integration
Embedded firmware adaptation
Device data-point definition
Device-control logic
Gateway and network testing
Interoperability testing

ECOSYSTEM SUPPORT

Customer ecosystem integration
Device onboarding evaluation
Gateway communication validation
Network compatibility testing
Matter certification planning
Technical coordination

EVIDENCEAnechoic Chamber Data
Pre-Compliance Testing

Firmware & Embedded Development

Embedded development connects the product hardware, sensors, user interface, communication module, cloud platform, and customer system into one functional connected product.
FIRMWARE DEVELOPMENT

MCU and module selection
Sensor-driver integration
Device-control logic
Communication protocol development
Application command processing
Device status reporting
Local automation logic
Error-code management

CONNECTED PRODUCT SUPPORT

Wi-Fi integration
Bluetooth integration
Thread integration
Firmware OTA
Production firmware programming
API coordination
Platform integration
Prototype validation

EVIDENCEAnechoic Chamber Data

Real Engineering Evidence

Actual development interfaces, prototypes, communication tests, and engineering records from connected-product projects.

Anechoic Chamber Testing
TUYA

Device App & Cloud Integration

Device onboarding, App control, real-time status, sensor data, and OTA functionality.

Evidence：App / Cloud / OTA
Anechoic Chamber Testing
MATTER / THREAD

Matter over Thread Development

Communication-module integration, Thread networking, onboarding, and gateway communication validation.

Evidence：Prototype / Network Test
Anechoic Chamber Testing
FIRMWARE

Firmware & Protocol Debugging

Embedded firmware development, protocol validation, communication logs, and device-control debugging.

Evidence：Firmware / Protocol
Anechoic Chamber Testing
INTEGRATION

Customer Platform Integration

Device firmware and communication protocols integrated with customer applications, gateways, APIs, or cloud platforms.

Evidence：API / Platform

Flexible IoT Development Routes

Choose the development route based on launch timing, budget, product complexity, data ownership, and long-term platform strategy.

Fast Launch

Tuya-based connectivity, cloud services, App control, and standard smart-product functions.

Customized Integration

Customized firmware, device protocols, APIs, branding, and integration with an existing customer platform.

Independent Platform

Project-based development of customer-owned applications, servers, cloud platforms, and device-management systems.

Project Evidence

Real engineering cases where our compliance expertise accelerated market entry.

Matter over Thread Air Purifier
Smart Air Purification / Healthcare Consumer Electronics（Japan）

Smart Air Purification

CHALLENGE

Entering air purification was a new challenge for the client, requiring expertise beyond traditional consumer electronics. The product needed to be compact, quiet, and suitable for Japanese homes while delivering meaningful differentiation through smart connectivity—without the cost and complexity of building a proprietary app and cloud platform.

ENGINEERING WORK

HisoAir provided a proven compact desktop air purifier platform and integrated Matter over Thread connectivity, enabling compatibility with major smart home ecosystems. The platform also created a future-ready path toward Air+ IAQ / IEQ sensing and broader connected healthy-environment applications.

Result:

The client gained a differentiated and faster entry into Japan’s air purification market with a product aligned with its consumer electronics DNA. Matter over Thread reduced the need for independent app development while establishing a scalable foundation for future sensor-driven products and smart indoor environment solutions.

Read Case →

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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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