HELF Purification Modules
Low-resistance electrostatic modules published for AHU and duct installations; verify particle, safety and ozone data.
Dongguan air-cleaning component manufacturing
Cleaner Air Without Ignoring Pressure Drop
CLEAN develops electrostatic purification modules, HEPA and chemical filters for air-handling units, ducts, fresh-air systems and purification equipment—selected around airflow, efficiency, resistance and maintenance.
Supplier profile
Components for HVAC and air-cleaning equipment
CLEAN is best positioned as a component and module supplier for HVAC manufacturers, ventilation contractors and building-system integrators—not as a generic clean-room contractor.
Established 2017Public registration record
Dongguan productionOn-site reviewed operation
HELF modulesManufacturer product scope
Filters & systemsHEPA, chemical, fresh-air integration
Product families01 · ELECTROSTATIC 02 · PARTICLE 03 · GAS PHASE 04 · INTEGRATION
Match the technology to the contaminant
HEPA Filters
Mechanical high-efficiency filtration where grade, face velocity, initial/final resistance and sealing matter.
Chemical Filters
Media-based odor and gaseous-pollutant control; sorbent and target contaminant must be specified.
Fresh-Air & Purifier Modules
Air-cleaning modules and controls for new-air units, purifiers and other ventilation equipment.
Engineering selection
A useful RFQ starts with the operating point
| Input | What to provide | Selection impact |
|---|---|---|
| Airflow | Rated/min/max m³/h and face velocity | Module area and efficiency |
| Pressure | Available static pressure and limit | Fan energy and system delivery |
| Contaminant | PM size, concentration, gas/odor or bioaerosol | Technology and media choice |
| Installation | AHU, duct, purifier, dimensions and orientation | Housing and sealing design |
| Environment | Temperature, RH, condensation and corrosion | Materials and electrical safety |
| Maintenance | Wash, replacement, access and service interval | Lifecycle cost and uptime |
Performance evidence
Ask for the curve—not only one efficiency number
Filtration performance changes with face velocity, dust loading, humidity and system leakage. Model approval should use complete test conditions and resistance curves.
- Particle efficiency by size and test standard
- Initial resistance and loading/final resistance curve
- Ozone and electrical-safety data for electrostatic modules
- Microbial reduction test method and boundary of claims
- Leakage, sealing, cleaning and service instructions
Certification boundary
The company publicly reports quality and environmental management-system certifications. Obtain the certificate number, legal holder, address, scope, issuer and validity before publishing certification badges.
A “purification/disinfection” product description should never be translated into a medical or health claim without the applicable test and regulatory basis.
Buyer FAQ
Before selecting a module
What is a HELF purification module?
CLEAN uses the term for its electrostatic purification/disinfection module family. Buyers should request the operating principle, rated airflow, particle-efficiency curve, resistance, ozone and safety data for the exact model.
Has the operation been visited?
Yes. Its presence and product activity in the Dongguan industrial park have been reviewed on site. Model performance and certificates still require document review.
Should buyers choose HEPA or electrostatic filtration?
The choice depends on contaminant, airflow, pressure budget, energy, maintenance and risk requirements. Some systems may use combined stages.
Can CLEAN customize modules for an AHU or purifier?
The published portfolio supports AHU, duct and equipment integration. Send airflow, pressure, dimensions, power, controls and target performance for engineering review.
Technical enquiry
Send the airflow and pressure budget
The form opens a structured email to the company’s published contact address.
Email: licy2001@foxmail.com
Telephone: +86 769 8330 1981
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