Paper Air Pre-filter is a synthetic fiber pleated filter with a filtration area 5 times that of general flat filters, available with aluminum, galvanized or paper frames, synthetic fiber filter material in 1", 2", 4" thicknesses, and aluminum or stainless steel protective mesh; it meets EN799 levels G2, G3, G4, F5, EUROVENT4/5 levels EU3, EU4, EU5, has an average weight efficiency of 84%-90%, complies with DIN53438 F1 flame retardant standard, features a recommended final resistance of 200Pa (maximum 250Pa), maximum air flow of 125% of rated volume, 100°C temperature resistance and 100% moisture resistance.
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| Key Parameter | Specification Details |
|---|---|
| Frame Material | Water-Resistant Beverage Board (Paper) |
| Filter Media | Synthetic Cotton & Polyester Fiber |
| Efficiency Grade | G4 (EN779) / MERV 8 |
| Support Grid | Galvanized Metal Mesh (Rust-proof) |
| Thickness | 22mm, 45mm, 95mm (1", 2", 4") |
| Initial Resistance | ≤ 50 Pa (@ 2.5 m/s) |
| Max Temp / Humidity | 70°C / 100% RH |
Core Advantages
· Large filtration volume
·Low initial resistance
· High dust holding capacity
·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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