Primary Filters
Get WAir's washable filters with high dust-holding capacity and low resistance, helping you protect systems and reduce replacement costs.
Efficient General Ventilation Filters
for HVAC Performance
Smart Filtration Solutions for
General Ventilation Systems
Primary Filters
Medium Efficiency Filters
Benefit from our filters' long service life, balanced efficiency and dust capacity. Get excellent cost performance with consistently low energy consumption.
Activated Carbon Filters
Use WAir's compact filters with high surface area and layered carbon granules, effectively adsorbing toxic gases and odors with low energy loss.
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Find the Right General
Ventilation Filters for Your System Now
Share your system details with us, and we’ll recommend or customize the best filtration solution for you.
Engineered for Performance,
Quality, and Sustainability
Technology Innovation
Benefit from our continuous technical innovation, in-house filter media development, and ISO 16890–based testing that ensures real, stable performance.
Quality Commitment
Our consistently reliable filters are produced under ISO 9001 management, with full testing to ensure every unit meets your expectations.
Environmental Responsibility
Reduce environmental impact through our low-resistance designs, long service life, and RoHS-compliant materials that support sustainable operation.
Top-Tier Quality You Can See
Explore our production facilities, testing equipment, and real installations of
general ventilation filters in commercial and industrial projects.
Your Trusted
General Ventilation Filters Manufacturer
Work directly with WAir, a filtration manufacturer focused on standards, quality, and
long-term performance.
Experience sample testing and fast lead times
Certified by ISO, SGS, RoHS, and Intertek, compliant with ISO 16890 standard
Customized filters using heat-resistant, corrosion-resistant, or high-strength materials
Trusted by HVAC and Facility Professionals
See how we help businesses like yours solve their toughest filtration challenges.
How to Work with Us
We streamline the collaboration process into three easy steps to ensure you get the perfect fit and performance.
Send Your Inquiry
Share your requirements or pain points. Then we will provide a tailored solution.Sample Verification
We send you a sample to test in your own facility. You verify the quality and fit before you commit.Production & Support
We manufacture your order swiftly and provide lifetime technical support and installation guidance.
Yes! We specialize in OEM. We can customize the dimensions, frame material, and filter media to fit your specific HVAC equipment and environmental needs perfectly.
We strictly follow ISO 16890 standards and use higher dust load concentrations during testing to ensure you get superior filter longevity. Our quality is guaranteed by our ISO 9001, ISO 14001, and ISO 45001 certified facility, and our products are also verified by SGS, RoHS, and ITS for safety and compliance.
You can receive samples first, with standard production usually completed within 20 days.
Absolutely. We offer a one-year warranty on our products and provide lifetime technical support to ensure your system runs smoothly.
