div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentthe-air-exchange-rate-is-slower-than-natural-ventilation-jumlah-pertukaran-udarahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · the air exchange rate is slower than natural ventilation jumlah pertukaran udara yang perlukan berbanding pengudaraan semulajadi it involves operation and maintenance cost melibatkan loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsusreader030viewer20220403165e24924e160d6b6c4039b975html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentthe-air-exchange-rate-is-slower-than-natural-ventilation-jumlah-pertukaran-udarahtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · the air exchange rate is slower than natural ventilation jumlah pertukaran udara yang perlukan berbanding pengudaraan semulajadi it involves operation and maintenance cost melibatkan loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsusreader030viewer20220403165e24924e160d6b6c4039b975html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentthe-air-exchange-rate-is-slower-than-natural-ventilation-jumlah-pertukaran-udarahtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · the air exchange rate is slower than natural ventilation jumlah pertukaran udara yang perlukan berbanding pengudaraan semulajadi it involves operation and maintenance cost melibatkan loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...