If filtration efficiency drops after 6 months, it’s usually electrostatic decay, not bad material. Heat, humidity, and pressure accelerate this natural process.
How to Verify the Real Cause:
Storage Best Practices:
Dongguan Hengda Solution:
We lock in specs (efficiency, pressure drop, grammage) upfront. With 20+ in-house testing machines, we verify data before shipment so you don't have to guess.
If filtration efficiency drops after 6 months, it’s usually electrostatic decay, not bad material. Heat, humidity, and pressure accelerate this natural process.
How to Verify the Real Cause:
Storage Best Practices:
Dongguan Hengda Solution:
We lock in specs (efficiency, pressure drop, grammage) upfront. With 20+ in-house testing machines, we verify data before shipment so you don't have to guess.