{"product_id":"10-250mm-qbf-low-noise-silent-centrifugal-acoustic-box-fan","title":"10\" 250mm - QBF Low Noise Silent Centrifugal Acoustic Box Fan","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eSize: 10\" (250mm)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eQuiet Box Fan (QBF) fan design allows for supply and extract ventilation for areas\/rooms with high requirements to low noise levels and limited mounting space. \u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eUnits can be installed above ceilings or in loft spaces. Suitable for connection with 250 (10\") mm round ducts.\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eSound level and Fan Volume\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e250mm - 1300m3\/hr - 41 dBA\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eDesign\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eThe fan casing is made of galvanized steel sheet and provided with heat- and sound-insulating material.\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eMotor\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003eThe centrifugal impeller with back-curved blades is powered by means of 2-pole asynchronous motor with external rotor. The motors are equipped with built-in thermal overheating protection with automatic restart. Motor ball bearings with selective lubricating oil ensure low-noise and maintenance-free operation.\u003c\/div\u003e\n\u003cdiv style=\"font-weight: 400; text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Swiftair","offers":[{"title":"Default Title","offer_id":55720654963064,"sku":"QBF250","price":190.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/8524\/0389\/products\/20171102_140505.jpg?v=1753276340","url":"https:\/\/fans4less.co.uk\/products\/10-250mm-qbf-low-noise-silent-centrifugal-acoustic-box-fan","provider":"Fans4less","version":"1.0","type":"link"}