HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong
HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong

Pollution-proofing your home

HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong
HKU residential college students had to live off campus in September while the university addressed air quality issues.Photo: David Wong
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