Thanks for your contact. Generally speaking, only the indicator light is blinking to remind you to need to change the filter.
we highly appreciate your kind understanding that the frequency of use will impact the following 2 aspects:
1) service time of the air purifier: the service time will be shortened with the high frequency of using the air purifier.
2) filter replacement: If you use the appliance infrequently or the surrounding air is in low pollution, it takes a longer time to replace. On the contrary, it will take a shorter time to replace. The normal time is 6-8 months.
your 100% satisfaction is our goal;
any other needs or problems, please feel free to contact us.