Based in Switzerland, Longday AG specializes in high-efficiency air filtration and protective ventilation systems for mobile machinery, vehicles, and industrial applications.

With solid technical expertise and a strong international supply network, Longday provides tailor-made solutions for clean and safe air – all from a single source.

At Agritechnica, Longday presents the new DustRanger series, including the version for Category 4 (EN 15695-2).

The system features a modular, compact design and offers the highest protection level against dust and gases – developed for OEM platforms in the pre-series phase (OEM-ready) and ideal for modern agricultural, construction, and recycling machinery.

In addition, Longday offers a complete filter portfolio – from pre-cleaners, cabin air filtration systems (including CAT 4), and air filters, to replacement elements for air, oil, hydraulic, and fuel systems.

Because clean air matters.