Thanks for your contact. I'm Cara for your customer service.
After reading carefully your message, we understand that there is a concern occurring to you about filter light.
We're deeply sorry for the inconvenience caused to you.
Could you please try to reset the air purifier by pressing the" sleep mode" for 3 seconds (not 3 times) again to see if it works?
If it still not help, please send an issue video to our support email, our support team will try their best to figure it out. We'd like to resend a new one to you.
Hope this message can help you.
Your 100% satisfaction is our goal. Any needs, please feel free to contact us.