Wynne says her spots — one suggested NDP Leader Andrea Horwath is out of touch with Ontarians — are about contrasting differences between the Liberals and the other parties.
Her comments come a day after deputy Tory leader Christine Elliott charged that Wynne was launching personal attacks, pointing to the Horwath ad in particular.
But Wynne says her campaign messaging is about debating "facts," such as her party's budget priorities on infrastructure spending and Tory leader Tim Hudak's plan to cut 100,000 public sector jobs.
She says her party's ads have made it clear what they stand for and don't sling mud at anyone.
Wynne had a light campaign schedule on Sunday, and was to attend a rally in Orangeville after an early morning charity run in Mississauga.
The parties can only run ads online for now, as there is a blackout for election ads on traditional media until May 21.