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g4 filter media

Pre Filter Media

Features
G4 filter media filtered ≥5μm particles and foreign matters, with large dust capacity, small resistance, economical and practical, and simple structure.
Weight (g/m²)
Size/Thickness (mm)
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Pre Filter Media Technical Specification

Filter Material Specifications
Filter TypePre Filter Media
Filter Class (EN 779)G2, G3, G4
Main MaterialPolyester Fibers (PET)
Flammability RatingF1 (DIN 53438), B1(GB/T 17591-2006)
Average Weighting Efficiency95% (ASHRAE 52.1-1992)
Final Resistance250Pa (Suggestion)
Dust Holding Capacity300, 400, 500, 600 g/m²
Humidity Resistance (Relative Humidity)100%RH

Dimensions & Technical Details

ModelSizeThickness (mm)Weight (g/m²)Rated Air Velocity (m/s)Initial Resistance (Pa)Rated Air Flow (m³/h)
RT-C0520m×1m51201.5155400
RT-C1520m×1m151801.5225400
RT-C2020m×1m202201.5285400
RT-C2220m×1m222501.5305400

Note: other specifications can be customized according to requirements

Features

  • Resistance to Fracture, High Elasticity
  • Step by Step Encryption of Filter Fibers and Stratified Filtration
  • Large Dust Holding Capacity and Stable Performance
  • Silicone Free
  • Multiple-Use after Vacuuming or Cleaning, Economical and Practical
  • Resistance to Fracture, No Fiber Loss
  • Paper Frame and Metal Frame are Mostly Used to Make Plank Filter and Pleat Filter, and Can Be Used as Pocket Filter
 

Application

  • Commercial buildings and industrial production facilities act as pre-filters for central air conditioning systems.
  • Fume filter: Used in kitchen hoods, hoods, and other equipment.
  • Electronics, biotechnology industry: as a protective layer of post-grade high efficiency filters.
  • Air purification system: used for pre-filtration of air conditioners, fans, air purifiers, and other equipment.
  • Special industrial uses:  painting room, aquarium and other scenes

Deep Processing of Pre Filter Material

Deep processing of primary cotton

What is Pre Filter Media?

The prefilter media is made of polyester fiber. The raw materials are first dispersed in the opening machine to remove impurities, and different fibers are mixed if necessary; Then comb through the carding machine to form a uniform fiber network with the same direction. After that, the surface of the fiber is melted with hot air to make it adhere to achieve the reinforcement of the fiber network. Finally, cut, fold and pack the filter cotton. Due to good compressibility, vacuum compression transport is generally used, which does not affect the use of.

What Is the Difference Between G3 and G4 Filter Media?

G3 and G4 are classifications for air filter media based on the European standard EN779. Both are considered coarse filters, meaning they are designed to capture larger particles. G4 filter media will have one more layer of fibers than G3, achieving a filtration effect of over 90%. In addition, there is not much difference in price. The price distinction of pre filter material mainly lies in the gram weight. The heavier the gram weight and the more fibers there are, the better the filtration effect will be, and naturally, the price will be a little higher

Choosing RT AIR FILTERS' Pre filter media means you are choosing to work with a company that is committed to green production and sustainable development.

Dickson C
Spanish
James D
America
Andrew C
Uzbekistan
Miranda Nguyen
Vietnam

We have commenced purchasing our materials from Guangzhou RT Air Filtech Co., Ltd since 2020.

The young and energetic team is so accommodating to our requirements and yet meets the market standard and price. During our recent visit, they demonstrated to us the determination to complete their facilities with the latest testing equipment and products.

Keep up the good work – Team Guangzhou RT Air Filtech Co., Ltd.

OUR HAPPY CLIENT FROM 98+ COUNTRIES

QUESTIONS AND ANSWERS

Q1: Can You Cut Flat Before Rolling Up On The Paint Stop Filters?

A1: Most Of The Paint Stop Filters On The Market Are Cut Flat After Rolling Up Because It Is Very Easy Operate, There Will Be A Problem That The Edge Is Not Flat. Certainly, We Can Cut Flat Before Rolling Up, Which Can Be Up To 2.6m Wide.



Q2: How Did You Pack HEPA Filter?

A2: One Unit Is Packed With PE Bag Put In 5-layer Carton. If The Customer Is Worried About The Transportation Process, We Can According To The Requirements Of The Form Of Beating Bracket + Corner Protection + Wrapping Film Packing.

Q3: Have HEPA Filter Passed The DOP/PAO Leak Test?

A3: Sure, Our HEPA Filter Is 100% Able To Pass The PAO Test. Because We Will Do An Integrity Test Of Each HEPA Filter For Efficiency And Leakage Before Shipment And Provide A Corresponding Test Report. Any Leakage Will Be Regarded As Unqualified Products And Reworked. We Are Using MPPS Scan Test For HEPA Filter Integrity Test Which According To EN 1822 Standard.

The Scanning Tracks Will Cover The Area:

Inside Filter Material, Sealant, Filter Frame, Corners, Gasket, Seal Of The Filter Mounting Assembly, The Sealant Between Filter Frame And The Gasket


Q4: How Long Does It Usually Take For Me To Receive The Goods?

A4: Depends On Whether You Want To Do Customization Your Air Filters Or Not, And Depends On The Speed Of Customs Clearance And Logistics, But We Can Guarantee To Ship Regular Air Filter In Less Than 7-10 Business Days, And We Have Customers In Singapore Who Received The Goods In Less Than 2 Weeks After We Ship Out.


Q5: What Is The Standard And Certification Of Your Products?

A5: We Implement Our Production Process In Strict Accordance With The Standards Of EN779 And EN1822.

Q6: What Is The Main Material You Are Using For HEPA Filter?

A6: We Usually Use Mircofine Glassfiber Paper, But We Also Can Do Synthetic Type Nano Paper Or PTFE Paper Type.