What is the filtration efficiency of the G4 filter?

The G4 grade filter has a 90% efficiency for 5um (micron) particles.

What are the main applications for this air filter?

It is used for clean room conditioning systems, primary filtration in filtration systems, pre-filtration at the intake of air purification equipment, and HVAC systems.

G4 Aluminum Alloy Frame Cotton Filter Air Filter Pleated Panel

Name: G4 Aluminum Alloy Frame Cotton Filter Air Filter Pleated Panel
Brand: Sichuan Huajie Purification Equipment Co., Ltd
SKU: 2087855995

Sichuan, ChinaSichuan Huajie Purification Equipment Co., Ltd

US$7.27

20-99 Pieces

US$7.25

100-499 Pieces

US$7.20

500-999 Pieces

US$7.10

1,000-9,999 Pieces

US$6.28

10,000+ Pieces

Sample price:US$13.62/piece.Request sample

Product profile

Customization

Available

Clapboard

without Clapboard

Filter Number

Model NO.

Customizable Size

Medium Material

Cotton

Efficiency

Filtration Grade

Pre Filter

Type

Panel Filter

Color

Sliver

Frame

Aluminum Alloy Frame

Shape

Rectangle

Porosity

5um

Grade

G3,G4

Package

Carton Package

Filter Media

Cotton

Transport Package

Carton Package

Trademark

trairf

Origin

China

HS Code

8421399000

Production Capacity

10000 Piece

Key features

Aluminum Alloy Frame: Durable aluminum alloy frame construction for the G4 pleated panel filter.

G4 High Efficiency: 90% efficiency for 5um particles, suitable for primary air filtration.

Customizable Sizes: Available in various standard and custom dimensions to fit specific systems.

Low Resistance Design: Optimized pleated structure ensures large filter area and low air resistance.

Manufacturer Direct: Direct factory supply with two dedicated production facilities for quality control.

ISO9001 Certified: Products pass strict quality inspections with ISO9001 and CE certifications.

Cost Effective: Competitive pricing due to in-house raw material production and control.

Wide Application: Ideal for HVAC, clean rooms, laboratories, and medical electronics systems.

Company profile

Self-brandedCustomization from DesignsStandardized quality controlHigh Repeat Buyers Choice

Sichuan Huajie Purification Equipment Co., Ltd

Sichuan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2017-11-13Nearest Port: Shanghai,Shenzhen,NingboAverage Response Time: ≤10.43hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryThe supplier operates in metal structures, refrigeration, and air-conditioning equipment, with manufacturing, sales, research and development, and import/export activities. It reports ISO9001:2015 and CE certifications, documented complaint handling, quality assurance, raw-material traceability, and OEM service for well-known brands. Customization is available from designs or samples, including full, minor, and flexible customization. Production includes four lines, but the factory does not continuously reconcile quantities for each batch. Innovation evidence is limited: one R&D engineer and no new products launched in the previous year. Financial information is incomplete because only reference years are provided, without financial results or indicators. The supplier has export capability and reported repeat-buyer preference of 80%–100%, but no Fortune 500 cooperation and no overseas service-country coverage are stated.

Supplier typeThe supplier is a manufacturer and seller of metal structures, refrigeration, and air-conditioning equipment, with mechanical equipment R&D and import/export activities. It has four production lines, self-operated import/export rights, and export-trade staff, supporting classification as a manufacturing supplier with trading and engineering capabilities.

CertificationsThe supplier reports ISO9001:2015 management-system certification and CE product compliance certification. These certifications are explicitly stated in the company and certification information, although the company description also references an older ISO9001:2008 claim.

After-Sales capabilityThe supplier has a clear complaint-handling procedure with followed records and a corrective and preventive action procedure with records. However, overseas service coverage is listed as zero, so the evidence supports structured complaint handling but not broad overseas service availability.

Production capacityThe supplier has four production lines, uniformly followed finished-product inspection instructions, quality assurance, and raw-material traceability. A deficiency is that the factory does not continuously reconcile quantities for each batch or batch-production volume, indicating a control gap in production quantity management.

Customization capabilityThe supplier explicitly offers customization from designs and samples, full customization, minor customization, and flexible customization. This directly demonstrates broad customization support.

Client casesThe supplier states that it has served many customers, including well-known brands, and provides OEM services for popular brands. It also reports repeat-buyer preference of 80%–100%, but no Fortune 500 cooperation and no named customer cases are provided.

Product Q&A

Q:Are you a Trading Company or Manufacturer?

We are a manufacturer with two factories: one produces filter materials/media/elements, and the other produces all kinds of Air Filters.

Q:Why should we choose you as a supplier?

Firstly, all products pass strict quality inspection before shipment. Secondly, we offer competitive prices as raw materials are provided by our own factory.

Q:Do you have any certification to ensure quality?

Yes, we have ISO9001 and CE Certification. The company also has advanced quality inspection equipment.

Q:What is the international standard for air filters?

Euro: Pre (G1-G4), Medium (F5-F9), HEPA (H10-H14), ULPA (U15-17). American: Pre (Merv1-7), Medium (Merv8-14), HEPA (Merv15-19), ULPA (Merv20).

Q:Can you send Free Samples?

Yes, we offer free samples. You just need to pay the express charge, provide your Express Account, or ask your courier to pick up from our factory.