When do I change the filters?

The FILTER indicator will signal when to replace the HEPA Filter. The replacement period will vary depending on the hours of usage, air quality and location of the unit. However, most filters in normal use need to be replaced every 12 months.
There are two separate filters: HEPA and Carbon Filter. For best performance, change the Carbon Filter every three months. Do not wash and reuse Carbon Filter as it will not work effectively.