Shanghai LINGQIAO

Environmental Protection Equipment Works Co., Ltd.

(LH) has been a leading manufacturer in the air filtration industry since 1983. LH specializes in the production of ePTFE membrane, HEPA media, filter bags and variety of other high grade PTFE products.

As the very first company to develop PTFE membrane in the Chinese market, LH as continued to be an innovator and world leader for over three decades. Customized products along with tailoredservice for our customers has made LH a name of quality in the Asian and European Market. Whether it’s filter bags, HEPA media or filtered solutions, LH has always been first in quality and service.

We never sacrifice quality for the sake of cost. Our target is bringing you the future of filtration technology!

Time Line

1983

LH Establishment
OEM to Bag
House

1993

ePTFE Membrane

1994

ePTFE Membrane
Lamination

2002

PTFE Fibers

2006

1st 100% PTFE
Filter Bag

2006

First PTFE Felt
Application
in Incineration

2013

HEPA Media

2015

Zero Emission
Filter Bag

Strengths

Shanghai Lingqiao Strengths in the World Market

Improved lives through providing Clean Air
“It’s Our PASSION”;
We help our customers be On-Budget and On-Schedule through high quality and dependable manufacturing;
Taking care of customers to give them what THEY need;
Delivering value to every customer through each product;
Providing the world with a cleaner environment through LH innovation;
A record of innovation by production of world class ePTFE membranes;
A close-knit team that empowers others to be Team Leaders and Innovatorss to give them what THEY need for 3 decades;
Dedicated to increasing productivity in manufacturing environments through providing clean and healthy air for over three decades;
Delivering Best-In-Class products and services to achieve PM2.5 for over two decades;
A world leader in Pollution Control.

WE’RE READY TO HELP YOU!

R&D and QC

Strict QC measures are applied through online and laboratory testing. Each meter of product is quality sampled through advanced technology and certified by third-party testing. Quality is something LH takes serious. A 60-member team has been carefully selected and trained by qualified technicians that work hard to give our customers top quality products and services. Through highly trained QC and Production teams, LH has developed the highest grade ePTFE products for applications that demand the best. The choice for the best products and service starts with LH. The rest is your success!

Quality Certificate issued for every order:

JSM-6510 (JEOL) Scanning Electron Microscope to check membrane structure and uniformity;
AFT-8130 (TSI) Filtration Efficiency Measurement;
3H-2000PB Membrane Pore Size Analyzer;
YG461E Digital Air Permeability Measurement Unit;
YG026C Digital Instron to measure tensile strengths and elongations;
Caliper to measure thickness;
Oven to measure shrinkage;
MIT flex measuring device.