| Product Introduction
The primary fltration bag is made by ultrasonic heat pressing of a chemical fiber fabric flter material, capable of intercepting particles with a size of > 5.0 μm (with an efficiency of 40% - 60%); the secondary fltration bag is made by ultrasonic heat pressing of a needle-punched hot air cotton flter material, capable of intercepting particles with a size of ≥ 0.5- 5.0 μm (with an efficiency of 50%-90%).
It is compatible with various frames such as galvanized frames and aluminum alloy frames, featuring a large dust capacity and low resistance. It is widely used in pre-fltration of central air conditioning,optimizing the airflow distribution through a bag structure, and the built-in support grille prevents deformation. It is suitable for high-humidity and high-airflow environments such as pharmaceuticals and medical industries. Both types of fltration bags can reduce the load on the subsequent high-effciency filters and extend the service life of the equipment.
| Product Features
- The filtration efficiency for particles larger than 5.0 μm is 40% to 60%.
- A specially designed high-capacity and low-resistance chemical fiber cloth is used as the filter material, with a large dust holding capacity.
- An internal supporting grid can be added.
| Product Application
- Mainly serving as the pre-flter for effcient fltration and the purification filtration of the room ventilation system.
| Technical Parameters

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Needle-pierced Hot Air Cotton Coarse / Middle-efficiency Filter Bag
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Wheel,Balancer,Tyre,Scissor Lift
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