Air filter device for e.g. cabins of earth moving machines, has air intake entering via bottom side of filter

摘要

#CMT# #/CMT# Air enters the device via the bottom side of the filter (11). #CMT# : #/CMT# An air purification device comprises a casing (8) with a cover (9') providing access to a holder for at least two filters. The device also includes an air suction mechanism or ventilator (13) for drawing air into the device so that it passes through the filters before being returned to a user space. The air supply (14) provides an intake of air from the bottom side of the filter, in the opposite direction to gravity. An independent claim is also included for a second air purification device comprising a casing with a cover providing access to a holder for at least two filter (11); and a holder with at least one spring-loaded filter support which can be urged by an adjustment part into a position where it is clamped against a filter underneath. #CMT#USE : #/CMT# The device is used as an overpressure filter for air in cabins for earth moving machines, luxury yachts and machine tools. #CMT#ADVANTAGE : #/CMT# Filtration efficiency is improved and less dust falls out and fouls the filters underneath. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a cross-section of the filter device. 8 : casing 9' : cover 10 : press parts 11 : filters 13 : ventilator 14 : air supply.