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LTF ceiling systems with HEPA filters for operating rooms & hospitals

Innovative LTF ceiling systems

MANN+HUMMEL has been a specialist in LTF ceiling systems (laminar flow systems) for more than 40 years. Over this time we have reduced the germ load in thousands of operating theaters, preparation rooms and intensive care units - delivering the highest levels of air cleanliness while maintaining all the required comfort criteria.

Our LTF ceilings achieve the required particle and germ counts in accordance with all international standards, including DIN 1946-4, ÖNORM H6020, SWKI VA 105-01, HTM 03-01.

Our LTF ceiling systems

Fluff separators for operating theatres & highly sensitive environments



  • Pursuant to ÖNORM H6020
  • Highest separator performance
  • Maximum stability
  • Ultimate resilience
  • Highest separator fabric protection
  • Very simple connection with air duct system
  • Required air volume regulation


  • Complies with the requirements of DIN 1946-4
  • Easy to assemble
  • 100% stainless steel construction
  • Easy to clean
  • Simple to install and remove with no tools required
  • Produced to the highest quality standards