1. The filtration efficiency
Air filter can reach 95% , Cabin filter can reach 80%
2. Hot melt adhesive / hot melt glue
Adapt to -30°C~80°C
3. Gram weight tolerance value
Within 10% .
4. Low resistance and High dust capacity
5. High accuracy
Effectively pass > 0.3μm particles
6. Lifetime / operating time
Generally 15,000 kilometers , half a year
All the data depend on the product material.