Comparison · 2026-01-31 · 8分钟
Air-Filtration Performance of Bamboo Fiber Nonwoven: PM2.5, Pollen, and Bacteria
Compares PM2.5, pollen, bacterial, and dust filtration performance of bamboo fiber nonwoven against meltblown media.
Bamboo fiber nonwoven can work in air filtration, but not every filtration application needs the same media. Buyers should separate pre-filtration and coarse-particle capture from PM2.5-grade or mask-grade filtration, where meltblown media still performs very differently.
How does the filtration data compare?
| Target | Bamboo 40 GSM | Bamboo 60 GSM | Meltblown 25 GSM |
|---|---|---|---|
| PM2.5 around 0.3 μm | 35-45% | 55-65% | 95-99% |
| Pollen 10-50 μm | 78-85% | 88-93% | 99%+ |
| Bacteria 1-5 μm | 45-55% | 65-75% | 99%+ |
| Dust above 50 μm | 90-95% | 96-98% | 99%+ |
Where does bamboo fiber nonwoven fit best?
- HVAC pre-filtration and coarse-dust interception
- Automotive cabin-filter coarse layers when combined with finer media
- Indoor air-purifier pre-filters
- Not as a stand-alone media for masks or high-efficiency fine-particle protection
If your project needs fine-particle or medical-grade filtration, bamboo fiber nonwoven is usually better treated as a support or pre-filter layer rather than the core filter medium.
FAQ
Can bamboo fiber nonwoven be the main filter layer in masks?
Not usually. Its PM2.5 performance is too low compared with meltblown media, though it can still work in outer or inner comfort layers.
What is its main filtration advantage?
Lower airflow resistance and practical performance on pollen, dust, and other larger particles.
How can filtration efficiency be improved?
Higher GSM, multilayer construction, or combining it with electrospun or meltblown media can improve overall performance.