Hello
Activated Carbon is different from PM 2.5. PM 2.5 can be filtered with
ใส้กรอง HEPA Activated Carbon does not filter PM 2.5, but helps capture volatile organic compound (VOC) well, so it is popular to mix with
ใส้กรอง HEPA to allow
ใส้กรอง HEPA can both filter small dust. and can also capture VOCs