Improving insulation: This magnetic fireplace windproof hood can eliminate winter weather airflow, block unwanted cold air at home, and prevent heat loss. In summer, this fireplace ventilation cover can be used to keep hot and humid air out. This fireplace windproof hood ensures that your chimney does not become an unwanted source of cold or hot air. Efficient: This windproof hood ventilation cover improves energy efficiency, allowing you to save on monthly water and electricity bills. Even without a fire, your chimney will continue to generate airflow, which may cause warm air to be sucked out of your home and replaced by cold air outside. Our fireplace barrier is the perfect solution to this common problem. Helping Allergy: This magnetic ventilation hood is the perfect windproof cover to reduce unwanted and unwanted pollen and dust entering your home through the fireplace. Our winter and summer fireplace covers are perfect for wood or gas fireplaces, making them the perfect companion for your home chimney. Easy to use: Our fireplace windproof plug is firmly attached to the magnetic vent of the fireplace using a magnet. Just remove the mapper plug before using the fireplace and reapply it after the fireplace cools down. In addition, our windproof plugs can be easily trimmed with a pair of scissors to better fit the ventilation openings of your specific fireplace. Product parameters: Thickness: 1mm Specification 1: 91.44 * 10.16cm (2pcs); Packaging size: 12 * 7 * 7cm, weight: 450g