All Mirka power tools have a standard two-year warranty. Get an additional 1 year of warranty free of charge by registering your tool within 30 days of purchase.
Answer: The model 1025 is not self cleaning. Instead, it features a Push & Clean button for cleaning.
The 1230 dust extractor has an available self cleaning mechanism which cleans the filter automatically every 15 seconds. The self-cleaning action is noticeable from a "thump" sound.