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Close all windows and doors
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Tear out one paper sheet from booklet, fold in half
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Hold folded paper, light one end and then BLOW OUT FLAME immediately
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Place smoldering paper on non-flammable surface such as a metal or glass plate. Use care to ensure the paper will not be blown off.
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The paper will be consumed slowly, generating light smoke with pleasant smell
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Keep all windows and doors closed for 15 minutes before re-entry
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Use one sheet per 10m2 room or space