Healthmate Plus Junior Replacement Filter Austin AirOnly use original Austin Air replacement filters to keep your Healthmate Plus Junior air cleaner working perfectly for many years to come. Each replacement filter comes with the main filter and one matching prefilter. White replacement filter fits the Sandstone, White, and Silver Healthmate Plus air cleaners. The black replacement filter fits the Black and Midnight Blue Healthmate Plus Junior air cleaners. Easy to change. Takes about 10 minutes. Step