1X(Feature:Made of high qua material, more durable to use.< />As part of routine maintenance, accessories are easy to disassemble and replace.< />The filter keeps the robot clean and reduces the penetration of dust, and other into the air you eathe.< />replenishment hepa filters fit model:i3/i3+/i4/i7/i7+/E5/E6/E7< />Replacement i filter can keep your vacuum operation at .Rumba Filters should be replaced 2 - 3 months.< />< />colour: as shown< />Material: plastic< />< />Package Conten:< />6 x filter)