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Johor Bahru, Malaysia
Manufacturing Partner — Water Purification

Malaysia Water Purification Base

Countertop RO Production Outside China, Minutes from Singapore

HisoAir's water purification partner Mona brings 28 years of industry experience to a Malaysian production base in operation since March 2026. Filters and control electronics are developed in-house by the group, mass-production testing matches its Shaoxing headquarters, and country of origin is confirmed in writing for each program.

PRIMARY FACILITY ROLE
Countertop RO & Drinking Water Appliance Production
CERTIFICATION DEPTH
ISO 9001 / 14001 / 45001 · NSF Certification Experience
SCALING HEADROOM
4,000 m² Operating Today, Expandable to 12,000 m²
Discuss Malaysia Production →View Real Factory Evidence
Countertop water purifier assembly line at Mona's Malaysia production base in Johor Bahru
Facility View: Mona Malaysia production base, Johor Bahru, Malaysia.
LOCATION & ORIGIN STRATEGY

Why This Facility

Johor Bahru sits about 15 minutes from the Singapore border, with Senai Airport and Singapore Changi both within an hour. For water purification brands, it offers a non-China production option backed by a group with its own filter and electronics capability.

Role 01

Non-China Origin for Water Programs

A Malaysian production base in operation since March 2026, giving North American and European brands an alternative country of origin for countertop RO platforms. Origin is assessed per product and confirmed in writing before shipment.

Role 02

Core Components Under Group Control

Mona develops and manufactures its own filter cartridges and PCBA control boards. The components that determine water quality and product safety are not sourced from an outside vendor.

Role 03

Capacity Ready Without New Construction

Production lines are running with capacity available for new programs today. Two adjacent standard buildings can add 8,000 m², with expansion from fit-out to line commissioning planned within about four months.

Role 04

Headquarters-Level Testing On Site

Mass-production testing at the Malaysia base matches the group's Shaoxing plant, so a Malaysia-built unit is released against the same criteria as its China-built equivalent.

INTEGRATED PRODUCTION DISCIPLINES

Core Capabilities

This facility's contribution to the HisoAir network is healthy-water production outside China — clean assembly, group-controlled core components, and North American certification experience.

Industrial Design & Product Definition
Capability 01

Clean Assembly Environment

Production areas built toward cleanroom standards, with all water-contact injection parts moulded in a clean injection workshop.

Industrial Design & Product Definition
Capability 02

Standardized Production Lines

Two standardized lines covering pre-assembly, assembly, testing and packaging under documented operating procedures.

Industrial Design & Product Definition
Capability 03

In-House Filter & PCBA Development

Filter cartridges and control electronics developed and produced within the group, securing the components that define water quality and safety.

Industrial Design & Product Definition
Capability 04

Localized Filter Media Supply

Activated carbon components supplied by a partner within the same industrial park, shortening lead times on a core consumable.

Industrial Design & Product Definition
Capability 05

Full-Scope Reliability Testing

Functional, aging, environmental, noise, transport simulation, drop, high- and low-temperature operation and water hammer testing.

Industrial Design & Product Definition
Capability 06

North American Certification Experience

Hands-on experience securing NSF/ANSI certification through CSA, NSF and WQA, including NSF/ANSI 58 for reverse osmosis and NSF/ANSI 372 for lead content.

MANUFACTURING VERIFICATION & E-E-A-T

Quality, Verification & E-E-A-T

For drinking water products, certification is where market access is won or lost. We document it per program, per facility, per model.

SITE VERIFICATION DOSSIER
MANUFACTURING RELATIONSHIP
Named Manufacturing Partner — Mona Water Purification
COUNTRY OF ORIGIN
Malaysia — determined per product under destination-market rules and confirmed in writing before each shipment
QUALITY SYSTEM GOVERNANCE
ISO 9001, ISO 14001 and ISO 45001 certified at the Malaysia entity.
NSF CERTIFICATION
Mona holds NSF/ANSI 58 and NSF/ANSI/CAN 372 certification, and NSF certification has been obtained on programs produced at this Malaysia facility.
INDUSTRY STANDING
National High-Tech Enterprise (China) · WQA Member
AUDITED & VERIFIED BY
HisoAir Supply Chain & Engineering Team
LAST SITE REVIEW
22/5/2026
DOCUMENTATION ACCESS
Facility audit summaries, certificate references, bill-of-materials localization and origin documentation available for qualified programs under NDA.

Standard Quality Control Process

HisoAir's unified 6-stage quality protocol, applied here alongside the testing standards of Mona's Shaoxing headquarters.
01
Supplier Qualification
Local and imported component suppliers approved under group criteria, including in-park activated carbon supply.
02
Incoming Inspection (IQC)
AQL sampling on critical parts, with water-contact components verified against food-grade material requirements.
03
Production QC (IPQC)
First article confirmation and in-process checks across pre-assembly and assembly under standardized procedures.
04
Testes funcionais
100% electrical safety, heating, cooling and water path verification on the testing line.
05
Final Inspection (FQC)
Finished-goods audit, cosmetic check and packaging verification before release.
06
Corrective Action (CAPA)
Closed-loop 8D reporting, with findings shared between the Malaysia and Shaoxing plants.
Water Product Certification & Country of Origin Disclaimer::

NSF/ANSI and other drinking water certifications are issued to a specific certificate holder, model and manufacturing location; they do not transfer automatically between models, facilities or brands. Certification status for a given program is confirmed in writing before production. Shipment from Malaysia does not by itself establish Malaysian country of origin; origin is determined per product under the rules of the destination market, based on the bill of materials and the transformation performed at this facility. HisoAir does not provide customs or legal advice and recommends customers confirm classification and duty treatment with their own broker or counsel.

VERIFIABLE OPERATIONAL PROOF

Real Factory Evidence

On-site photographs of the Mona Malaysia production base, taken after the start of production in March 2026.

Proof 01

Pre-Assembly Area

Component pre-assembly stations feeding the main line.—2026-03

Volume Production
Johor Bahru, Malaysia
Verified Operational Record
Proof 02

Assembly Line

Countertop RO purifier assembly under standardized procedures.—2026-03

Volume Production
Johor Bahru, Malaysia
Verified Operational Record
Proof 03

Testing Line

In-line functional, heating and water path testing.—2026-03

Production QC
Johor Bahru, Malaysia
Verified Operational Record
Proof 04

Inspection Room

Dedicated room for finished-unit performance and reliability checks.—2026-03

Testes de qualidade
Johor Bahru, Malaysia
Verified Operational Record
Proof 05

Packaging Line

Final packaging and carton verification before outbound shipment.—2026-03

Production QC
Johor Bahru, Malaysia
Verified Operational Record
Proof 06

Factory Exterior

Malaysia production building in the Dewani industrial area.—2026-03

Site Record
Johor Bahru, Malaysia
Verified Operational Record
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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