ClearFilter filter media manufacturing line

Medical Filter Paper Manufacturer for Hospital and Pharmaceutical Ventilation

We manufacture glass fiber filter paper for high-efficiency air-filter development in hospitals and pharmaceutical clean environments. CFH7463PH, CFH7663PH and CFU9263 offer three documented material options, with model-specific efficiency tests, pressure-drop limits and shared mechanical properties for converting and filter design.

Three media grades · 0.33±0.03 mm thickness · Water resistance ≥650 mmH&₂O

Compare Our Medical Air Filter Paper Grades

Filter media web passing through processing equipment

CFH7463PH

Efficiency ≥99.99% at 0.3 μm and 5.3 cm/s. Pressure drop ≤330 Pa at 5.3 cm/s. This model has the lowest specified pressure-drop limit of the three and is a starting point when that efficiency target fits the filter design.

Discuss CFH7463PH

CFH7663PH

Efficiency ≥99.998% at 0.3 μm and 5.3 cm/s. Pressure drop ≤390 Pa at 5.3 cm/s. Choose this PH grade for evaluation when the higher specified 0.3 μm capture threshold is required and the design allows the resistance limit.

Discuss CFH7663PH

CFU9263

Efficiency ≥99.999% at MPPS and 2.5 cm/s. Pressure drop ≤380 Pa at 5.3 cm/s. This grade provides an MPPS-based efficiency specification for projects requiring that measurement approach.

Discuss CFU9263
About ClearFilter

Engineered for Excellence.
Built for Industry.

We specialize in manufacturing high-performance filtration systems tailored for rigorous environments. From premium HEPA and High Temperature filters to robust Ventilation and Activated Carbon solutions, our precision-engineered Pleated Filter Cartridges ensure optimal air purity and operational safety.

Driven by innovation and uncompromising quality control, we partner with global enterprises to deliver reliable, high-efficiency purification technologies that exceed industry standards.

  • High-Efficiency HEPA
  • Extreme Temp Resilience
  • Activated Carbon Tech
  • Precision Pleated Cartridges
Global Manufacturing Hub
30 Andeli, WestYuhua Road, Nanjing

Medical Filter Paper Specifications

Model Efficiency Efficiency test Pressure drop at 5.3 cm/s (Pa) Thickness at 100 kPa (mm) Basis weight (g/m²) Tensile MD (kN/m) Tensile CD (kN/m) Gurley stiffness MD (mg) Water resistance (mmH&₂O) Loss on ignition (%)
CFH7463PH ≥99.99% TSI 8130A; 0.3 μm; 5.3 cm/s ≤330 0.33±0.03 75±3 0.85–1.2 0.45–0.7 ≥950 ≥650 8
CFH7663PH ≥99.998% TSI 8130A; 0.3 μm; 5.3 cm/s ≤390 0.33±0.03 75±3 0.85–1.2 0.45–0.7 ≥950 ≥650 8
CFU9263 ≥99.999% TSI 3160; MPPS; 2.5 cm/s ≤380 0.33±0.03 75±3 0.85–1.2 0.45–0.7 ≥950 ≥650 8

Note: Pressure-drop values are measured using TSI 8130A at 5.3 cm/s. MD means machine direction; CD means cross direction. Values describe the filter medium. Finished-filter classification and installed-system performance require their own evaluation.

Media Properties That Support Filter Manufacturing

Defined Capture and Resistance Targets

Our PH grades share a 0.3 μm efficiency-test condition, making their stated capture thresholds and resistance limits directly useful for grade screening. CFU9263 adds an MPPS specification for projects using that test basis.

Consistent Physical Specifications

All three grades use a thickness of 0.33±0.03 mm and a basis weight of 75±3 g/m². Shared physical specifications simplify the first comparison, while each candidate still needs to be evaluated in the intended pleat geometry and filter pack.

Strength and Stiffness for Converting

MD tensile strength of 0.85–1.2 kN/m, CD tensile strength of 0.45–0.7 kN/m and MD Gurley stiffness of at least 950 mg give filter manufacturers defined material values for web handling, folding and assembly trials.

Water Resistance Across the Range

Each grade specifies water resistance of at least 650 mmH&₂O. This provides a common material criterion when assessing moisture exposure in air-handling systems, together with drainage, sealing and the assembled filter’s operating conditions.

Air filtration research and test equipment at ClearFilter

Wet-Laid Glass Fiber Media and Application Development

We use glass fiber web formation and a controlled binder system to develop the media structure. Fiber distribution, formation and bonding are reviewed together because capture performance and converting behavior depend on more than a single efficiency figure.

Our in-house media production and filtration laboratory support laboratory trials, pilot evaluation and batch manufacture. Raw-material checks cover glass fibers, binders and additives, while application development connects material properties with the intended filter construction.

ClearFilter wet-laid glass fiber media production line

Development Sequence

Step 1 Define the media specification
Step 2 Evaluate trial material and converting
Step 3 Agree production acceptance and documentation

We can provide media test reports and consistency documentation to support the customer’s qualification and change-control work. The scope is the supplied media and agreed tests; installation qualification and room performance are assessed in the complete project.

Choose the Grade Around the Filter Design

Decision What to compare Product-specific starting point
A 0.3 μm capture target is specified Compare values at the same face velocity CFH7463PH and CFH7663PH share the 5.3 cm/s efficiency-test condition.
The project requires MPPS data Use an MPPS result at the specified test velocity CFU9263 specifies ≥99.999% at MPPS and 2.5 cm/s.
The fan has limited static-pressure allowance Review the complete filter’s pressure drop at design airflow Media pressure-drop limits are ≤330, ≤390 and ≤380 Pa respectively, each at 5.3 cm/s.
Pleat tips crack or the pack distorts Check handling, fold geometry, bonding and supports All three grades provide the same specified strength and stiffness ranges for initial trial planning.
Qualification requires repeatable records Agree model, lot, test conditions and acceptance fields Our media reports and consistency documentation can support the materials portion of the review.

CFU9263 has a lower stated pressure-drop limit than CFH7663PH, but their efficiency values use different test velocities and particle-size definitions. These data do not establish a universal performance ranking.

Air Filtration for Healthcare and Pharmaceutical Environments

Cleanroom ventilation application context
Filter media properties Finished-filter construction and testing Installed air-system qualification

Hospital ventilation

Our three grades can be evaluated for filter development serving operating departments, critical-care areas, hospital pharmacies and laboratories. Selection follows the ventilation design, required finished-filter performance and maintenance conditions.

Pharmaceutical clean air

PH grades provide 0.3 μm specifications, while CFU9263 provides an MPPS option for terminal-filter development. Cleanroom classification depends on the complete air system, installation, operation and qualification programme.

Controlled laboratory environments

Media selection should account for the required capture test, filter integrity and exposure conditions. Containment and decontamination requirements are assessed at equipment and facility level.

Medical Air Filter Paper Questions

What does “medical filter paper” refer to here?

Our range is glass fiber media for air filters used in hospital ventilation and pharmaceutical clean environments. It is supplied for filter manufacturing and development; the products described here are not diagnostic papers or patient-contact filtration devices.

How do I choose between CFH7463PH and CFH7663PH?

They share thickness, basis weight, tensile-strength ranges, stiffness and water resistance. At the same 0.3 μm and 5.3 cm/s test condition, CFH7663PH specifies ≥99.998% efficiency rather than ≥99.99%, with a pressure-drop limit of ≤390 Pa rather than ≤330 Pa. The design requirement determines whether that change is appropriate.

Why does CFU9263 use an MPPS test?

MPPS means most penetrating particle size. This test basis identifies the particle-size region that is most difficult for the evaluated filter medium to capture. CFU9263 specifies ≥99.999% efficiency at MPPS and 2.5 cm/s. Its pressure-drop value is separately specified at 5.3 cm/s. For technical reference, see the TSI 3160 test method overview.

Do these efficiency values establish a HEPA or ULPA filter class?

The complete filter must meet the relevant classification and test requirements. The media data support material selection; pleating, seals, frame assembly and leakage performance also matter. Agree the finished-filter standard before choosing a model. Reference: ISO 29463 classification scope.

Can you support pharmaceutical qualification documentation?

We can supply media test reports and consistency documentation for the agreed specification. These records can support the materials portion of qualification and change control. PAO/DOP testing of the assembled or installed filter, and IQ/OQ/PQ of the facility, belong to the relevant project validation scope.

Can these grades be used at 250°C or with repeated disinfectant exposure?

No 250°C continuous-use rating is specified for these PH/CFU grades. Elevated-temperature duty and repeated exposure to ozone, hydrogen peroxide or other disinfectants require material-specific compatibility and performance evaluation. Discuss those conditions before choosing the medium.

Does water resistance or loss on ignition establish a safety certification?

Water resistance is a material property, and the listed 8% loss on ignition describes mass loss under the relevant test. Neither value alone establishes a fire rating, antimicrobial effect or approval for a medical facility.

Discuss Medical Air Filter Paper for Your Project

Share the target media test, finished-filter design and intended operating conditions. We can review a PH or CFU grade and the supporting material documentation.

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