lol i kow EVERYONE probably knows and uses this trick but if u wanna check your main air-flow track i.e the route most of the air take in your room....just blow a puff of smoke in the back on your fan and see the smoke lead the way.
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lol i kow EVERYONE probably knows and uses this trick but if u wanna check your main air-flow track i.e the route most of the air take in your room....just blow a puff of smoke in the back on your fan and see the smoke lead the way.