Dyson DC07/DC14 Post White Filter Pad
This is the white filter pad located above the motor (under the clear bin). Yours may not look white, may be a grey/black colour from the years of motor carbon dust. These filters are not designed to be washed, which is why they are best to be replaced. If your filter is a thick plastic filter then you will need the HEPA filter that can be found below
£2.04