Nov 21, 2025
When & Why to Replace Your Austin Air Junior Filter: A Simple Homeowner’s Guide
The Austin Air Junior filter lasts up to 5 years, but pollution, smoke, pets, and heavy use can shorten its lifespan. When airflow drops, odors linger, allergies worsen, or it’s been several years, it’s time to replace the filter. Regular replacement keeps your purifier performing at its best, ensuring cleaner air, better odor control, and healthier breathing in your home.