When I want to know how bad is the haze outside, besides using my visual judgement, I take a look at where my cat is resting. If it is lying low - it means the PSI level is bad.
NEA past 3 hours averaging is of no use at all to us.
I notice that even the birds are chipping less. There is a flock of parakeets that fly by early morning and evening. When the weather is good, they are happily 'chatting' away. Now it is all quiet. Not sure if they are still flying by.
We are all going back to basic. No point depending on advance technology since NEA refuses outright to give us reliable current reading.