This idea gets brought up in every thread about Insight's dust issues - there is not enough air pressure on Mars for the downwash to clean the panels. For Ingen

This idea gets brought up in every thread about Insight's dust issues - there is not enough air pressure on Mars for the downwash to clean the panels. For Ingenuity specifically the problem is that it is also far too far away - it would take over ten years for the chopper to reach Insight.