About us
Clean air. A better world.
At Hengst Air Filtration, we believe that filtration is not just about technology—it's about the future of the planet. As part of the international Hengst Group, we specialize in the development and manufacture of high-end industrial filters that are used in a wide range of industries, from healthcare and mobility to engineering and energy, as well as in households and demanding industrial applications.
We are a proud member of a third-generation family-owned company with over 60 years of experience in filtration. Our work is based on innovation, quality, and sustainability—because we know that even a small particle can have a big impact.
Hengst in numbers
products
patents
Our mission
Hengst Air Filtration Czech Republic s.r.o. is based in Liberec and is one of the group's key production plants. Here, we focus on the production of highly efficient industrial filters, product development, and logistics.
We specialize primarily in:
- Pocket filters (made of synthetic and glass fibers)
- HEPA filters with hot-melt adhesive
- Filters with aluminum separators (including HT versions)
- Testing according to EN1822 and ISO16890 standards
Our production capacity:
- 450,000 pocket filters per year
- 79,000 hot-melt filters per year
- 21,000 Al-separator filters per year
All products undergo rigorous testing to ensure their reliability even in the most demanding operations.
Development of the company in Liberec
Founding of DELBAG (Deutsche Luftfilter- Baugesellschaft) in Germany.
Establishment of the national enterprise LVZ – Liberecký vzduchotechnický závod (Liberec Ventilation Plant).
Privatization and incorporation into the GEA AG group under the name LVZ a.s.
Relocation of bag filter and Al-separator production to Liberec.
Relocation of HEPA filter production and laboratory from Berlin to Liberec.
GEA AG becomes 100% owner, company renamed GEA LVZ a.s.
Acquisition of GEA's ventilation division by the Triton Group.
The company is renamed DencoHappel.
Merger with Fläkt Woods, formation of the FläktGroup
With the integration into the Hengst SE Group, Hengst Air Filtration Czech Republic s.r.o. is established.
Certifications and Quality
ISO 9001:2015
quality management system
ISO 14001:2015
environmental management
AQAP 2110 (ČOS 051672)
quality assurance for NATO
EUROVENT
product certification
Sustainability
At Hengst, we build on innovation, quality, and environmental responsibility. Our goal is to develop cutting-edge filtration while being as gentle on the planet as possible.
Our commitments for 2030:
- 100% green electricity in all plants by 2024
- No natural gas and an emission-neutral fleet by 2030
- Own energy production - solar panels in China and Germany
Eco-friendly products
- Filters made from recycled plastics
- System Energetic solution® – an economical and sustainable alternative to spin-on filters
- Hengst Sustainability Award 2023
Filtration for a better future – not just what we do, but how we do it.