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Clean the Air While You Clean the House
Your vacuum's agitator brush and exhaust whip up dust that eventually settles on the surfaces you've just cleaned. Filter out some of that dust before it settles by switching your thermostat to 'fan on.' This turns on the blower inside your furnace and filters the air even while the system isn't heating or cooling. Leave the blower on for about 15 minutes after you're done cleaning forhow to remove dust from air. But don't forget to switch it back to 'auto.' Most blowers aren't designed to run constantly. Plus: Here are 8 simple furnace fixes you can do yourself.
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A PVC pipe connected to a vacuum hose lets you reach up to high spots or into narrow crannies, so you can suck up those cobwebs around skylights or exterminate dust bunnies behind radiators. A 10-ft. piece of PVC pipe is inexpensive. Here's another vacuum attachment hack.
In the plumbing aisle, you'll also find PVC and rubber 'reducer' couplings that let you connect your vacuum hose to a different-size pipe.