{"id":293,"count":2,"description":"Door grilles make air transfer between rooms possible when doors are closed. They help your ventilation\/MVHR system keep airflow moving from supply rooms (living room\/bedrooms) toward extract rooms (bathroom\/kitchen) without creating pressure problems.\r\n\r\nThey\u2019re especially useful to reduce pressure differences, improve overall air distribution, and prevent doors from \u201cpulling\u201d shut or whistling due to airflow resistance. Door grilles are a simple, effective upgrade for comfort and system balance.\r\n\r\nChoose a door grille based on the required airflow, door thickness and finish, and use them where you want better air passage without leaving doors open.","link":"https:\/\/wtwstore.com\/france\/product-category\/valves-grilles\/door-grilles","name":"Grilles De Porte","slug":"door-grilles","taxonomy":"product_cat","parent":291,"meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Door Grilles | WTW Store<\/title>\n<meta name=\"description\" content=\"Door grilles for ventilation: allow air transfer between rooms, reduce pressure differences and support MVHR airflow. 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