Nilfisk Combat RED bagless vacuum cleaner cylindrical dust HEPA filter kit as photographed.
It goes inside the cylindrical bagless dust canister.
The pleated filter is protected with a gauze that is removable. Both should be vacuumed clean from time to time with another machine.
It's not for the later model the Nilfisk Combat ULTRA that is usually BLUE
According to EN 60335-2-69 The Terms "TYPE H" FILTRATION and HEPA FILTRATION are NOT INTERCHANGEABLE
The HEPA classification only considers the "efficiency of filtration" eg H10 H11 H12 H13 H14 U15 U17 NOT the SUITABILITY FOR USE with HAZARDOUS or COMBUSTIBLE dusts.
At the moment, standard postage within Australia is capped at a maximum of $20!