Hong Rwei × Washwise
From air to surface —
clean, everywhere.
Clean air from Hong Rwei, a clean environment from Hong Rwei Washwise — the strongest ESG partner for your business.
General Agent
Hong Rwei joins forcesClean from air to surface
Hong Rwei filters the air
- 10 years of air-conditioning filter manufacturing
- Primary · medium · HEPA/ULPA · activated carbon, full range
- Two sites: Taoyuan, Taiwan × Subic Bay, Philippines
- Raw material to shipment in-house, OEM / ODM to spec
Washwise cleans the surfaces
- Taiwan invention patent I810906
- EU SRS · Taiwan Halal · Green Mark
- Grey-water safe, over 97% biodegradable
- Used at Taoyuan and Songshan airports and city bus fleets
1 + 1 whole-space solution
Clean air and clean surfaces for property, hotels, restaurants and factories — one purchase covers both.
Ready for green procurement
Certifications, test reports and SDG alignment your ESG and sustainability reports can cite.
Gateway to Southeast Asia
Subic Bay Freeport plant plus Washwise's first market in Malaysia — supply and market landing together.
Clean air from Hong Rwei, a clean environment from Hong Rwei Washwise — the strongest ESG partner for your business.
Product Display
Our Product Categories
33 products
Hong Rwei · General Agent
WashwiseCleaning with zero harm
Washwise is the cleaning brand of Dahe International Biotechnology, Taiwan: detergents kept simple from raw material to process to use, so the next generation can grow up in a harmless environment. Hong Rwei is the general agent for Washwise, and manufactures the cleaning formula range under license from Washwise (Dahe) at our Subic Bay plant in the Philippines.
Taiwan's first cleaning brand built around grey-water safety
Grey water is the household wastewater from washing machines, showers, sinks and kitchens. Reusing it to water plants and irrigate crops is one answer to drought — but not every cleaning product leaves grey water safe for plants.
The whole Washwise range is grey-water safe: it does not acidify the water, the wastewater can be broken down by micro-organisms, and it does not harm plant growth.
Dishes, laundry, floors and hands — everyday cleaning.
Certifications & testing
Held by the Washwise brand and its production factory in Taiwan.
EU SRS certification
Issued by SRS Certification GmbH, Germany (accredited to ISO/IEC 17065) to the Washwise production factory.
SGS product testing
Products are SGS tested. Multi Purpose Spray and Floor Cleaner: Staphylococcus aureus 24-hour kill rate >99.9%.
Halal certified
The Washwise production factory holds Halal certification.
Biodegradability
Free of chemical fragrance, environmental hormones and formaldehyde.
2024 invention expo gold medals
Tokyo International Genius Invention Exhibition, ITEX Malaysia and MTE SDG Malaysia — gold medal and special awards at each.
Patented formula
ROC (Taiwan) invention patent I810906, in force until 2042; patent applications filed in the United States and China.
Taiwan Green Mark
Green Mark eco-label for the industrial and commercial cleaning agent.
Product liability insurance
Washwise products are covered by product liability insurance of NTD 10 million.
Certificates, patents & awards
Click any document to enlarge.
About Us
Hong Rwei's Story
Filters of every size and specification. High-standard customization. Mature technology for air conditioning.
With technological innovation as our core competitiveness, Hong Rwei provides a wide range of high-performance filter products that precisely meet customers' strict requirements on performance, application, and quality.
Over more than a decade we have kept expanding in the air-conditioning filter sector — optimizing through technology and standardized processes, and building a brand customers trust.
- ✓Any size, any efficiency grade
- ✓OEM / ODM from raw material to shipment
- ✓Factories in Taiwan & the Philippines
Business Philosophy
Five Core Values
Integrity
Adhering to the highest ethical standards, maintaining business credibility and practicing honesty in every dealing.
- Ethical standards
- Business credibility
- Honest dealings
Interactive Filtration Lab
What does each filter grade catch?
Drag the slider through our filter series and watch which airborne particles are captured.
- Hair & lint✕
- Pollen✕
- Coarse dust✕
- Mold spores→
- PM2.5→
- Bacteria→
- Smoke & viruses→
- Odors & VOCs→
Primary
- Typical efficiency
- 60–90% @ ≥10 µm
- Particle size
- ≥ 10 µm
Pre-filtration for HVAC & AHU, protecting downstream filters
Reference values based on ISO 16890 / EN 1822 grading. Actual performance depends on media and specification.
Filter Advisor
Not sure which filter you need?
Answer three quick questions and we'll point you to the right series.
Where will the filter be used?
Our Services
Hong Rwei Services
Customized OEM / ODM
Production to your specification on a full range of composite machines — one-stop from raw material to shipment, with competitive pricing.
Qualified Standard Operations
Strict standard operating tests ensure every filter reaches maximum efficiency and meets qualification standards.
Professional Consultation
30+ years of filter expertise serving nearly 2,800 enterprises, and clients across the USA, Canada, Oceania, Japan, the Middle East and beyond.
From spec to shipment
- 1Requirement
- 2Sampling
- 3Production
- 4QC Testing
- 5Shipment
Contact Us
Need help? Contact Hong Rwei
- Address
- 1F, No. 72, Lane 300, Xinxing St., Xinxing Village, Luzhu District, Taoyuan City, Taiwan
- Phone
- +886-3-3414846
- Fax
- +886-3-3414782
- hongrwei24@gmail.com