H ay fever might seem like an out-of-doors plague but pesky pollen can invade our homes, making days and nights a red-eyed misery of runny noses and itchy throats.

Right now, the country is in the middle of the annual hay fever season with grass taking over from trees as our main cause of allergy attacks.

Climate change means that pollinating plants are becoming ever more prolific, making our allergy seasons longer and stronger. City-living offers no respite because traffic pollution reacts with tree pollen to make it even more irritating.

However, you can make your home a refuge from seasonal allergies with these gadgets and strategies.

Air purifiers work by sucking in air, trapping floating pollens and venting out clean air.

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