Abstract: A process for removing solids from a stream of gas comprising passing a solids-laden gas through a woven fabric filter bag, which bag is installed with longitudinal slack, wherein, during filtration, the differential pressure across the bag causes the bag to expand outwardly. During clean-off, the exhaust valve of the apparatus is closed and, as the differential pressure across the bag approaches zero, the bag becomes slack and the solids deposited on the filter surface disengage therefrom and drop, by gravity flow, to a collection bin. The exhaust valve is then opened and the step of removing solids from the gas stream is resumed.