Keep Windows closed to prevent pollen from coming in the house.

保持窗户关闭以防止花粉进入房间。

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Keep Windows closed and use air conditioning if you're allergic to pollen. Don't use fans since they can stir up dust.

如果对花粉过敏，关闭窗户，使用空调，不要用电扇，因为会扇起灰尘。

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Guests are even asked to keep their windows closed at night to help the same cause.

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Keep the windows closed and the air-conditioning on, giving you an allergen free bubble.

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Once inside, keep your windows closed, change your air filters, and run your air conditioner, Dr. Kao adds.

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