{"product_id":"airvent-sm-ultima-acoustic-window-vent","title":"airvent SM ULTIMA","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThe\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eBrookvent airvent SM ULTIMA\u003c\/strong\u003e\u003cspan\u003e is a high-performance, surface-mounted acoustic window vent designed to provide effective background ventilation while helping reduce external noise ingress. Manufactured from extruded aluminium with a durable polyester powder-coated finish, it combines robust construction, excellent weather resistance and acoustic performance in a practical window ventilation solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for projects where both ventilation and noise reduction are important, the SM ULTIMA is available in two principal equivalent area options: 2960 mm² and 5000 mm². The 2960 mm² version offers acoustic attenuation of up to 47 dB Dn,e,w in the open position, while the 5000 mm² version provides a higher airflow capacity with an open-position acoustic rating of 39 dB Dn,e,w.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ventfeatures graduated airflow control, natural upward air deflection and a wool-pile seal that provides weather resistance up to 1000 Pa. An optional portable rod control is also available, offering additional flexibility where the vent needs to be operated from a more accessible position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its combination of acoustic performance, controllable airflow and durable aluminium construction, the SM ULTIMA is an excellent option for residential and commercial projects requiring ventilation in noise-sensitive or exposed locations.\u003c\/span\u003e\u003c\/p\u003e","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":54929612439937,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/8831\/3985\/files\/shopify_main_01.jpg?v=1792782010","url":"https:\/\/brookvent.co.uk\/products\/airvent-sm-ultima-acoustic-window-vent","provider":"Brookvent","version":"1.0","type":"link"}