This purple post-motor HEPA filter, captures any fine dust and particles.
It is the post-motor filter that goes under the cannister (not the filter that goes into the side compartment).
Suits Dyson models DC07, DC14.
You should check and cleane this filter regularly and replace every 12 months.
For a video on how to change the filters on a DC07, please click the link below
www.youtube.com/watch
(These filters are non-genuine and will suit the Dyson machines listed.
The manufactuers name is used for reference purposes only).