PP Air Filter Media

BiaoDian is a manufacturer and supplier of PP Air Filter Media. It is offered for customers who want to buy or wholesale filtration material for air filter production. It is used as the main working layer inside engine air filters, helping capture dust and particles while keeping airflow steady under normal driving conditions.

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Product Description

BiaoDian is a professional factory that can produce PP Air Filter Media for automotive cabin filtration and HVAC intake systems.

We support OEM and aftermarket cabin filter projects requiring stable airflow performance, reliable filtration structures, and long-term supply consistency.

The filtration layer inside the cabin air filter remains the same, while different projects may use different outer frame structures according to vehicle platform and assembly requirements.

Product Details

Common frame structures include:

• PP frame cabin air filters

• PU frame cabin air filters

In automotive HVAC systems, outside air continuously enters the cabin during daily driving.

Dust, pollen, and airborne particles are captured by the filtration layer before airflow continues into the vehicle interior.

For many cabin air filter buyers, airflow stability is just as important as filtration efficiency.

If airflow resistance changes too quickly during long-term use, it may affect:

• cabin airflow performance

• HVAC operating stability

• filter replacement cycles

• overall driving comfort

Because of this, We focus not only on filtration efficiency, but also on:

• airflow consistency

• dust holding capability

• frame structure stability

• sealing performance

• long-term supply consistency.

Specifications

Product Name	PP Air Filter Media
Brand	BiaoDian
Material	PET
Width	2000mm(customizable)
Length	400m (customizable)
Operating Temperature	–40℃ to 80℃
Application	Main filtration layer in engine air filters

Technical Parameters

Item	3LCK8270	3LCK3340-4	3LCK1260	3LCK830030	3LCK3250	Test Method
GSM (g/㎡)	270±27	340±34	260±20	300±30	250±25	ISO 9073-1
Thickness (mm)	3.0±0.3	3.1±0.3	2.3±0.2	3.1±0.3	2.7–3.2	ISO 9073-2
Air Permeability (L/㎡·s)	≥650	≥900	≤1100	≥650	≥800	ISO 9237
Max Aperture (μm)	≤105	≤130	≤190	≤105	≤110	ISO 2942
Stiffness MD (mN·m)	≥2.5	≥4.0	≥2.0	≥5.0	≥2.5	ISO 5628
Stiffness CD (mN·m)	≥1.5	≥2.5	≥1.5	≥3.0	≥1.5	ISO 5628
Filtration Efficiency (%)	≥99	≥98	≥99	≥98.5	≥98	ISO 5011
Dust-Holding Capacity (g/㎡)	≥700	≥800	≥350	≥600	≥650	ISO 11155
Flame Retardancy	F1	F1	F1	F1	F1	ISO 3795
Color	White	White	White	White	White	Visual

PP Air Filter Media

How It Works

During engine operation, incoming air passes through this layer of Engine Air Filter Media PP before entering the intake system.

PP Air Filter Media

As air flows through:

• Larger particles are captured first

• Smaller particles are retained within the fiber structure

• Cleaned air continues toward the engine

Over time, particles build up inside the material, allowing it to continue performing its filtration function throughout its service life.

Applications

This kind of PP Air Filter Media is mainly used in engine air filters, especially for regular production and replacement parts.

Most of the time, it goes into passenger car filters. For daily driving, the requirement is pretty straightforward — the filter just needs to keep working in a steady way without unexpected changes.

You’ll also see it used in commercial vehicles. These run longer hours, so the material is expected to stay consistent over time rather than just performing well at the beginning.

For aftermarket production, it’s a common choice as well. Factories usually prefer materials that fit into their existing designs without needing adjustments, and this type is already widely used in standard filter structures.

PP Air Filter Media