Is indoor air safer? 7 things to know and ways to stay protected in this prolonged haze season

A test reveals worse air quality indoors than outside, while product testing shows that some expired masks still filter particles effectively. Talking Point finds out from experts why neither finding tells the whole story.
Read the full report on Channel Newsasia
Story file
- Section
- Science
- First reported by
- Channel Newsasia
- Reporter
- liew zhi xin
- Published
- Sunday, 25 October 2026, 3:30 am IST
- Coverage
- One outlet so far
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