Washable primary Synthetic fiber pleated filter: with aluminum or galvanized detachable frame, washable synthetic fiber as filter material that can be cleaned 6-8 times, meeting EN 799 G3/G4, EUROVENT 4/5 EU3/EU4 standards, with ASHRAE 52.1-1992 average weight efficiency of 84%/88%, complying with DIN 53438 F1 flame retardant standard, recommended final resistance of 200Pa (maximum 250Pa), maximum air volume at 125% of the fixed air volume, temperature resistance up to ≤100°C, and humidity tolerance of 100%RH.
Industry Expertise
Factory Price
OEM/ODM Services
Core Advantages
· Low initial resistance
· High dust holding capacity
· Economical and practical
How often should I replace this Paper Frame Pre-Filter?
Usually, we recommend checking it every 1 to 3 months. If the filter looks very dark or if you notice the air flow is getting weak, it is time for a quick and easy replacement.
Will the paper frame fall apart if it gets wet?
No. The frame of this Paper Frame Pre-Filter is made of special moisture-resistant cardboard. While it is not meant to be soaked in water, it stays strong and stiff even in very humid air.
Is this Paper Frame Pre-Filter recyclable?
Yes. Since the frame is paper and the media is synthetic, this Paper Frame Pre-Filter is much easier to dispose of and recycle compared to heavy metal filters.
Can this Paper Frame Pre-Filter catch tiny bacteria or viruses?
This is a G4 level filter, meaning its main job is to catch larger dust, hair, and lint. For bacteria, this Paper Frame Pre-Filter works together with a "High-Efficiency" (HEPA) filter which sits behind it.
Can I wash this Paper Frame Pre-Filter?
No. This Paper Frame Pre-Filter is designed to be disposable for better hygiene and performance. Because it is very low-cost, replacing it with a new one is more effective than trying to wash it.
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