This Smartvent compatible ventilation filter offers H10 level filtration with HEPA efficiency. This filter captures pollens, dust and allergens from the air. HEPA filters can capture at least 99.97% of particles with a diameter greater than or equal to 0.3m. HEPA H10 pass more than 15% of 0.1 micron particles per litre of air. The HEPA filter is made from fibreglass or filter paper and form mini folds to increase the filter surface. 
HEPA filters prevent the spread of bacteria and viruses through the air and, therefore, are very important to prevent infection. HEPA filtration systems for medical purposes usually incorporate high-energy ultraviolet light to eliminate any live bacteria and viruses trapped by the physical filter. Some of the best rated HEPA units have an efficiency of 99.995% which ensures a high level of protection against diseases that are transmitted through the air.
The filter cassette is held in a frame of silicon impregnated cardboard to facilitate maintenance and replacement. This design also permits a range of duct sizes for the same filter cassette. 

This H10 filter cartridge which is suitable for these Smartvent systems listed: 


Smartvent Filter H10 HEPA