What is the payment term?

T/T or L/C at sight. 30% Deposit, balance prior to delivery.

What are the packing details?

Filters sealed by film. Loaded into corrugated box. Heavy boxes will be strapped by PP belt.

What kind of documents will you provide?

Bill of Ladding, Commercial Invoice, Packing List, Certificate of Original, for the convenience of your custom clearance.

3.3 Premium Coarse Air Filter for Enhanced Efficiency

Name: 3.3 Premium Coarse Air Filter for Enhanced Efficiency
Brand: Guangzhou Ley&Sons Environmental Technology Co., Ltd
SKU: 2107197622

Guangdong, ChinaGuangzhou Ley&Sons Environmental Technology Co., Ltd

US$10.37

1 Piece

Sample price:US$10.37/piece.Request sample

Product profile

Customization

Available

Clapboard

without Clapboard

Filter Number

Model NO.

Coarse

Medium Material

Cotton

Efficiency

G1~G4

Filtration Grade

Pre Filter

Type

Folded Filter

Filter Element

Non-Woven Filter Cotton

Frame

Aluminum Profile/ Aluminum Sheet/ Galvanized Sheet

Filtration Efficiency

40%~90%@2μm

Available Thickness(mm) of Aluminum Prof

46,50,69,80,90,96

Max.Temperature Applicable

80℃

Max.Humidity Applicable

100%

Transport Package

Corrugated Box

Specification

592*592*46

Trademark

Ley&Sons

Origin

China

HS Code

8421392990

Key features

Detachable Aluminum Frame: Firm and stable structure with reusable outer frame for easy media replacement.

High Dust-Holding Capacity: Reinforcing ribs and loose-to-dense fiber structure maximize capacity with minimum resistance.

Reusable Filter Media: Polyester synthetic fiber allows cleaning and multiple reuses for long service life.

Customizable Sizes: Standard sizes available plus custom dimensions to fit specific requirements.

Robust Frame Materials: Constructed with aluminum profile, aluminum sheet, or galvanized sheet options.

Versatile Applications: Ideal for HVAC systems in offices, hospitals, airports, and industrial clean rooms.

Company profile

Importers and ExportersFull CustomizationQuality AssuranceProduction Process Visualization

Guangzhou Ley&Sons Environmental Technology Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤0.01h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryLingjie is a combined manufacturing supplier producing air-filtration products and cleanroom equipment, with five production lines, inventory capability, and stated delivery within 15 working days in both peak and off-peak periods. It reports broad customization and ODM services, recent new-product activity, quality assurance, and multiple certifications. However, documented service and quality records are incomplete, there is no valid manufacturing contract with related subcontractors, and no overseas agents, warehouses, showrooms, or offline trade-show participation. Export experience is stated as one year, while another slice identifies domestic markets as primary. Customer reach is reported at over 10,000 enterprises and institutions, but no specific customer cases are provided.

Supplier typeThe supplier is identified as a combined company and professionally manufactures Lingjie-brand coarse, medium, fine, and ultra-fine filters, along with air showers, pass boxes, clean benches, and FFUs. This supports classification as a combined manufacturing supplier rather than a purely trading or service entity.

CertificationsThe supplier states that it holds ISO9001, OHSAS18001, EU CE, RoHS, and other international certifications. These are explicit certifications relevant to quality, occupational safety, and product compliance, although the provided information does not include certificate validity dates or scopes.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and offers broad design customization. However, it has no available SDK and only three years of total R&D engineer experience are reported, so the evidence supports product-development activity but not a clearly strong technology platform.

Production capacityThe supplier operates five production lines, has inventory capability, reports delivery within 15 working days in both peak and off-peak seasons, and has six to ten quality-control staff. Capacity governance has weaknesses because no valid contract exists with related subcontractors and the order-fulfillment status is listed only as “6,” without an explained unit or benchmark.

Customization capabilityBoth R&D and design-service records list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also explicitly provides ODM services, giving clear evidence of broad customization capability.

Product Q&A

Q:Are you a factory or trading company?

We are factory, located in Guangzhou City, Guangdong Province, China. Online verification (e.g. by Teams) is welcomed any time during working days (Monday~Friday, 8:00~17:00) and one hour appointment in advance during weekends (Saturday~Sunday). Face-to-face meet in our factory is warmly welcomed as well.

Q:Is the price on Made-in-China platform authentic?

Yes, the price is authentic, but just for one specific item, as you may see from the "Material Composition and Running Condition" and the "Size&Data", variable specification and sizes are available. Therefore, always send an Inquiry or an email to get a corresponding price for your preferred item.

Q:What are the delivery terms?

Ex-works, FOB Guangzhou, FOB Shenzhen, CIF

Q:How long is the guarantee?

One year quality warranty .

Q:How long is the production leading time?

Normally within two weeks, for bulk quantity, it may vary.