7.3.5 Filtration properties – output of the filtration process I.
{"Image DocumentName": "7.3.5 Filtration properties \u2013 output of the filtration process I.", "Image ImageDescription": "Filter efficiency. It is the ratio of particles captured by a filter over the total number of particles found in the air upstream of the filter. Filter efficiency can either be based on specific particle size ranges or based on the total number of particles of all sizes. Efficiency can be defined by formula 1, where G1 is an amount of penetrated particles (which haven\u00b4t been captured) and G2 is total amount of particles upstream. formula 1. Expression G1/G2 is named \u201ePenetration of filter. Efficieny is changing during the filtration process (see chapter Nonstationary filtration)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}