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June 2020

ROCK ISLAND, IL - MONOXIVENT has added the MNX-LFK-U (Ultra-Low Particulate Air) to the product offering. The LFK-U is an effective and flexible solution consisting of a fan, filter and fume extractor in a single unit. It is highly suitable for use in healthcare environments where exhaled air, which could potentially contain viruses or residues from inhaled medicines, can be problematic.

For maximum efficiency, the MNX-LFK-U is equipped with a highly efficient filter (ULPA 15 rating), an optimized fan with a highly efficient EC motor with speed control and a flexible extractor arm, which features the lowest pressure drop on the market.

The MNX-LFK-U units are available in two versions: the 150 with a 2-inch extractor arm, and the 175 with a 3-inch extractor arm.  
Viruses in dry form have a size of 0.08-0.12 μm but are usually bound to an aerosol and are therefore almost always larger. A ULPA filter is very good at filtering these particles. The LFK U has an ULPA filter (FPU 50) as standard. The filter is rated ULPA 15 and tested in accordance with EN 1822-1 and has a separation efficiency >99.9995%. The filter is tested using the MPPS (Most Penetrating Particle Size) method with a size of 0.17 μm, which is the most difficult size for a filter to capture. For smaller or larger particles, the filter has higher separation efficiency. The filter test is carried out at an airflow of 60 cfm of filter area. At higher airflows the separation efficiency is reduced. The FPU 50 has a filter area of 54 sq./ft. and can withstand an airflow of up to 290 cfm without impaired separation efficiency. Viruses caught in the filter cartridge are trapped in the fibers of the filter media. Once the virus gets stuck, it will rest in the filter media and soon dry out and die, due to the air flow passing through.

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