Changing BlueAir HEPA filter

You are supposed to change your BlueAir HEPA filter every 6 months. There is a display that tells you when to change it. I decided to see how long I could use my HEPA filter before changing it. I judged the effectiveness using my AirVisual Node. Today my air purifier finally struggled jeep my bedroom below 50 AQI. Hence I changed the filter today.

Below is my HEPA filter change in Shanghai last year after six months of usage.

Blueair hepa filter after six months of usage

This photo was after six months of usage in Saigon.

Hepa filter for Blueair after 11 months of usage

I definitely will change it after six months now. I just wanted to see if it would work. I was trying to go for a full year but could not.

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