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Absolute Filters (HEPA – ULPA).

High-efficiency air filters for optimal filtration of fine particles. Our HEPA and ULPA absolute filters are suitable for all kinds of structures in their air conditioning and ventilation systems: cleanrooms, operating rooms, maintenance rooms...
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Illustration RPV HEPA


Absolute filters are capable of filtering at least 99.97% of particles with a diameter greater than or equal to 0.3 µm in one pass.

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The range

How are our absolute filters made?

Everything you need to know about Deltrian absolute filters

Equipped with a metal frame (aluminum, stainless steel, galvanized steel) or polystyrene, our absolute filters consist of a microfiber glass filter media with low pressure loss. All our products are tested several times on the manufacturing line to guarantee you optimal results.

Our Services

Services to help you with your projects

Our services aim to provide you with the most appropriate support for your absolute filter needs.


Studies and advice

Before starting your project, we analyze your structure and indoor air quality to offer you suitable HEPA and ULPA filters.

Product placement

High-quality absolute filters offer even better air quality when placed correctly: we choose their location with you!