Ventilator HEPA Filter Media, Pleated PP Filter Core, High Efficiency Bacterial Virus Filtration

This polypropylene pleated HEPA filter media is the core filter element of the ventilator HMEF/BVF filter. It is engineered to capture fine particles, bacteria and viruses in airflow. It achieves BFE ≥99.999% and VFE ≥99.999%, and can trap particles as tiny as 0.027μm, offering reliable airway protection for patients during respiratory treatment.
 
The filter relies on four major capture mechanisms: impaction, interception, sieving and diffusion. Larger contaminants are caught by direct impaction; small particles are intercepted by fiber structures; particles are blocked through sieving effect; ultra-fine particles are captured by random diffusion movement. This multi-principle filtration delivers stable high-performance filtering.
 
Made of premium polypropylene pleated material, this filter media balances ultra-high filtration efficiency and low airflow resistance. The pleated design expands the effective filtration area, improving contaminant holding capacity without creating extra breathing burden for patients. It meets strict medical-grade hygiene standards.
 
We are the original manufacturer of this HEPA filter media. Custom sizes and specifications are available to match different HMEF, BVF and CPAP filter housings. Each batch is tested strictly for consistent filtration performance. We support bulk supply for medical device factories and respiratory accessory dealers.
 
Product Specifications

To better ensure the safety of your goods, we provide professional, environmentally friendly, convenient, and efficient packaging services.

Dongguan Longwangda Technology Co., Ltd. has been established for 15 years and specializes in the production of:

• Disposable CPAP filters
• Medical HMEF filters
• Corrugated absorbent paper
• Bacterial filtration membranes

All sizes can be customized according to customer requirements. Our production capabilities include:

• 2 large-scale corrugated composite machines
• 3 high-speed slitting machines
• 2 ultrasonic slitting machines
• 3 winding machines
• Complete packaging line

We guarantee fast delivery and high-quality products. New and existing customers are welcome to inquire and negotiate business.