kitx101 says
11 years ago
Reach psi400 will declare ph?
K_vIn says
11 years ago
Now 250 leh..
liumyj says
11 years ago
according to PM2.5 or PM4.0??
kitx101 says
11 years ago
no news
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liumyj says
11 years ago
fucker only know psi without knowing its factor (PM)