Hygienic Air Handling Units are specialised air handling units engineered for environments where air cleanliness is critical to safety. Hospitals, operating theatres, pharmaceutical manufacturing facilities, cleanrooms and laboratories all depend on hygienic AHUs to maintain controlled, contamination-free air.
What Makes an Air Handling Unit Hygienic:
A hygienic AHU differs from a standard unit in both construction and certification. The casing is built from aluminium or stainless steel with smooth, cleanable surfaces and snap-fix (screw-less) panel construction that eliminates the crevices where microbes and dirt can accumulate. Internal components, drain pans and coil sections are designed for thorough cleaning and drainage, preventing the stagnant moisture that allows microbial growth.
Certifications and Standards
Trosten's Hygienic Air Handling Units are tested and certified to VDI 6022 Part 1:2011 and DIN 1946 Part 4:2008 standards by TUV-NORD and TUV-SUD Germany. These standards set strict requirements for cleanability, material compliance and contamination prevention. VDI 6022 in particular is the benchmark for hygiene in ventilation and air conditioning systems, ensuring that the unit will not become a source of contamination in sensitive environments.
Where Hygienic AHUs Are Used:
- Hospitals and operating theatres, where airborne infection control is essential
- Pharmaceutical manufacturing, where product purity depends on clean air
- Cleanrooms requiring controlled particle counts
- Laboratories and research facilities
- Healthcare and life-science environments with strict air quality requirements
Why Healthcare Facilities Choose Hygienic AHUs:
In healthcare, the air handling system is part of the infection-control strategy. A hygienic AHU that meets VDI 6022 and DIN 1946 standards provides documented assurance that the equipment supports — rather than compromises — the facility's hygiene requirements. The stainless steel construction, screw-less panels and certified design make the units straightforward to clean and validate, which is essential for facilities subject to regular hygiene audits.
Trosten Hygienic Air Handling Units are available across an airflow range of 300 to 30,000 LPS, and can be customised to suit the specific clean-air requirements of each project.