Class I Medical Filter Paper 99.999% 2.5 Micron Absorbent MSDS Certified

Place of Origin Dongguan
Brand Name Longwangda
Model Number LWD422000666

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Product Details
Applicable Industries Medical Filter Effect 99.999%(2.5 Microns)
Instrument Classification Class I Main Material 70%Wood Pulp/30%Cotton Pulp
Quality Certification MSDS Pore Size 20 Microns
Safety Standard GB/T18830-2009 Durability High
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MSDS Medical Filter Paper


99.999% Medical Filter Paper


2.5 Micron Absorbent Filter Paper

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Product Description

Product DesClass I Medical Filter Paper 99.999% 2.5 Micron Absorbent MSDS Certified


The Absorbent Filter Paper is a cutting-edge solution designed to meet the highest standards of filtration efficacy, ensuring that the air passing through it is cleansed to an exceptional degree. This product boasts an impressive filter effect of 99.999% for particles as small as 2.5 microns, making it an indispensable component for respirator filters, respirator HMEF (Heat and Moisture Exchange Filters), and ventilator filters. The superior performance of the filter paper can be attributed to its meticulous construction, which consists of two distinct levels of filtration, providing a formidable barrier against a wide array of particulates and contaminants.

Constructed from a blend of 70% wood pulp and 30% cotton pulp, the Absorbent Filter Paper is both robust and efficient. This combination of materials ensures that the filter paper not only has a high tensile strength but also exhibits exceptional absorbency. The wood pulp provides the structural integrity required to withstand the rigorous conditions of use, while the cotton pulp enhances the filter's absorbency, making it highly effective at trapping and retaining particles and moisture.

Adherence to safety standards is paramount in the production of medical-grade filter materials, and the Absorbent Filter Paper is no exception. It complies with the GB/T18830-2009 safety standard, which is a testament to its reliability and safety in medical applications. This compliance ensures that the product is suitable for use in critical health care settings, providing peace of mind to both medical professionals and patients alike.

The Absorbent Filter Paper falls under Instrument Classification Class I, indicating that it is designed for general use in the medical field and does not pose potential risks associated with invasive procedures. This classification underscores the filter paper's appropriateness for a wide range of medical devices, particularly in respiratory care where high efficiency and reliability are required.

As a key component of the Respirator HMEF Filter, the Absorbent Filter Paper plays a crucial role in maintaining the hygiene and effectiveness of the respiratory circuit. It effectively prevents the passage of bacteria and viruses while retaining the heat and moisture necessary to ensure the patient's comfort during mechanical ventilation. Its high level of filtration efficiency makes it an essential element in the operation of a ventilator filter, where it helps to safeguard both the patient and the ventilator from contamination.

In the context of a respirator filter, the Absorbent Filter Paper's exceptional filtration capabilities are of paramount importance. With the ability to filter out 99.999% of particles down to 2.5 microns, it provides an essential defense against airborne pathogens and pollutants, contributing to a safer breathing environment. This feature is especially critical in environments with a high risk of aerosol transmission, where the purity of the air is crucial for health and safety.

The Absorbent Filter Paper is not only a testament to advanced filtration technology but also represents a commitment to environmental responsibility. The use of wood and cotton pulp as the main materials ensures that the filter paper is not only effective but also more sustainable compared to synthetic alternatives. These natural materials are sourced responsibly and contribute to the overall eco-friendliness of the product.

In summary, the Absorbent Filter Paper is an essential component for anyone in need of a high-efficiency filtration solution. Its superior construction, adherence to safety standards, and impressive filtration capabilities make it an ideal choice for use in medical respirators, HMEF filters, and ventilators. Whether for hospitals, clinics, or other healthcare facilities, this filter paper stands as a bulwark against contamination, ensuring clean and safe air delivery in various medical applications.



  • Product Name: Absorbent Filter Paper
  • Safety Standard: GB/T18830-2009
  • Durability: High
  • Pulp Material: Wood Pulp
  • Colour: White
  • Levels: 2
  • Application: Medical Instrument Supply
  • Used in: Artificial Nose
  • Compatible with: HMEF Equipment

Technical Parameters:

Parameter Specification
Applicable Industries Medical
Durability High
Width Customization 10mm-600mm
Instrument Classification Class I
Safety Standard GB/T18830-2009
Colour White
Filter Effect 99.999% (2.5 Microns)
Quality Certification MSDS
Core Components Paper
Weight 90g/m2


The Longwangda brand, renowned for its high-quality filtration products, offers the LWD422000666 model of absorbent filter paper that stands out for its exceptional filter effect of 99.999% for particles as small as 2.5 microns. Crafted with meticulous care in Dongguan, this product is engineered to meet the rigorous safety standard GB/T18830-2009, ensuring it meets the highest benchmarks for safety and efficiency in the medical industry.

Designed with a two-level filtration system, the Longwangda absorbent filter paper is constructed from superior wood pulp material, which provides outstanding absorption and filtration capabilities. This makes it an ideal component for use in medical HMEF (Heat and Moisture Exchange Filter) equipment, where maintaining a sterile and uncontaminated environment is crucial.

The LWD422000666 model is particularly well-suited for application in the manufacturing of Respirator HMEF Filters. These filters are essential in preventing the passage of bacteria and viruses during mechanical ventilation, thereby safeguarding both patients and healthcare providers. The Longwangda filter's high efficiency ensures optimal performance of HMEF equipment, contributing to safer and more reliable respiratory care.

Moreover, the HMEF material used in the Longwangda filter is pivotal for creating barriers against microbial penetration while allowing for the efficient exchange of heat and moisture. This balance is critical in various medical scenarios, such as in operating rooms, intensive care units, and during anesthetic procedures, where the quality of the breathing environment directly impacts patient outcomes.

The Longwangda LWD422000666 absorbent filter paper is thus a cornerstone in the production of high-grade medical filters. Its applicability extends across various industries that require sterile air filtration, including but not limited to, pharmaceutical manufacturing, biotechnology labs, and any setting where the reduction of airborne contaminants is a priority.



Brand Name: Longwangda

Model Number: LWD422000666

Place of Origin: Dongguan

Colour: White

Filter Effect: 99.999% (2.5 Microns)

Instrument Classification: Class I

Quality Certification: MSDS

Pore Size: 20 Microns

Longwangda is recognized as an HMEF original factory , providing top-tier product customization services. As the original source factory for HMEF , we ensure the highest quality in our Absorbent Filter Paper products. Trust in Longwangda, your premier HMEF original factory , for unparalleled performance and reliability in filtration.


Support and Services:

The Absorbent Filter Paper is designed to provide high-quality filtration for a variety of laboratory applications. Our product features a high level of absorbency and purity to ensure that it meets the rigorous standards required for sensitive research and analysis tasks. The filter paper is suitable for qualitative or quantitative filtering, clarifying liquids, and gas filtration.

To ensure optimal performance, it is important to select the appropriate grade of filter paper for your specific application. Our product range includes various pore sizes and flow rates to cater to different filtering requirements. The Absorbent Filter Paper is easy to use and can be cut to size as needed for your experimental setup.

In addition to its strong filtration capabilities, our Absorbent Filter Paper is designed to resist tearing and disintegration, providing reliable and consistent results. Its uniformity and high quality make it an essential supply for laboratories, educational institutions, and industrial settings.

For best results, store the filter paper in a cool, dry place and avoid exposure to moisture and contaminants. If you need guidance on selecting the right grade of filter paper for your needs or have any questions about the product, our technical support team is available to provide you with expert advice and assistance.

We are committed to providing exceptional customer service and support. Please refer to our product documentation for detailed instructions on the use and care of Absorbent Filter Paper. For further assistance, do not hesitate to reach out to our customer service team for support.


Packing and Shipping:

Product Packaging for Absorbent Filter Paper:

Our Absorbent Filter Paper is carefully packaged to ensure its integrity and performance. Each sheet is separated by a thin layer of protective paper to prevent sticking and damage. The sheets are then stacked and wrapped in a moisture-resistant paper to preserve their absorbent properties. The wrapped stack is placed inside a sturdy cardboard box, which is then sealed to prevent contamination and protect the contents during transit.

Shipping of Absorbent Filter Paper:

The boxed Absorbent Filter Paper products are then placed into a secondary packaging, typically a corrugated shipping box, to provide additional protection. The box is filled with packing material such as foam peanuts, bubble wrap, or crumpled paper to minimize movement and absorb shock during shipping. The shipping box is securely taped and labeled with the necessary shipping and handling information, including "Fragile" and "Keep Dry" to inform handlers of the care required. Our products are shipped via trusted carriers to ensure timely and safe delivery to our customers.