{"title":"Schalldämpfer","description":"\u003cp\u003eA \u003cstrong\u003educt silencer\u003c\/strong\u003e – or muffler – is an acoustically lined section of ducting that fits inline after your fan. Sound travels down a duct as readily as air does, and a silencer absorbs it before it reaches the outlet.\u003c\/p\u003e\n\u003ch2\u003eWhere the noise actually comes from\u003c\/h2\u003e\n\u003cp\u003eThree separate sources, and they need different fixes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor noise\u003c\/strong\u003e – the fan itself. Fixed by a silenced box fan or an \u003ca href=\"\/de\/collections\/ec-fans\"\u003eEC fan\u003c\/a\u003e turned down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir noise\u003c\/strong\u003e – turbulence in the ducting. Fixed by a silencer, and by pulling flexible ducting taut rather than leaving it concertinaed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration\u003c\/strong\u003e – the fan transmitting through whatever it is mounted on. Fixed by hanging it on rope ratchets or straps rather than bolting it to a wall or a tent frame.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA silencer only addresses the second. If your problem is vibration through a joist, a silencer will not help – hang the fan instead.\u003c\/p\u003e\n\u003ch2\u003eFitting it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter the fan, on the exhaust side.\u003c\/strong\u003e That is where the noise is loudest.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the diameter\u003c\/strong\u003e to your fan and ducting. A step down chokes airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger is quieter.\u003c\/strong\u003e More lined length means more absorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpect a small airflow cost\u003c\/strong\u003e – typically a few percent. Worth it if noise is what stands between you and running the room.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe cheap wins first\u003c\/h2\u003e\n\u003cp\u003eBefore buying anything: hang the fan on rope ratchets so it touches nothing solid, pull the ducting taut and cut it to length, and turn the fan down if you have the headroom. Between them those three fix most noise complaints for nothing.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cp\u003eSee \u003ca href=\"\/de\/collections\/extractor-fans\"\u003eextraction fans\u003c\/a\u003e, \u003ca href=\"\/de\/collections\/ducting-and-fittings\"\u003educting and fittings\u003c\/a\u003e and \u003ca href=\"\/de\/collections\/fan-speed-controllers\"\u003espeed controllers\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eWhy buy from The Hydro Bros?\u003c\/h2\u003e\n\u003cp\u003eWe are a hydroponics shop in Croydon and plenty of our customers grow in flats. Tell us where the noise is and we will tell you what actually fixes it. Discreet UK and European delivery, and \u003ca rel=\"noopener\" href=\"https:\/\/uk.trustpilot.com\/review\/thehydrobros.com\" target=\"_blank\"\u003eexcellent customer reviews on Trustpilot\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"can-silencer","title":"Dosen-Schalldämpfer","description":"\u003cp\u003eDie aufgelisteten Größen entsprechen Flansch × Länge × Körperdurchmesser\u003c\/p\u003e\n\u003cp\u003eWenn es unbedingt leise sein muss, können Sie sich mit diesen Kanal-Schalldämpfern nicht verfehlen. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffektive Geräuschminderung\u003c\/li\u003e\n\u003cli\u003eRobustes Gehäuse\u003c\/li\u003e\n\u003cli\u003eEinfach zu bedienen und zu montieren\u003c\/li\u003e\n\u003cli\u003eMineralwoll-Isolierung minimiert unerwünschte Lüftergeräusche\u003c\/li\u003e\n\u003cli\u003eNahtlos geschweißtes Gehäuse\u003c\/li\u003e\n\u003cli\u003eRobuste Stahlkonstruktion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDiese wurden sorgfältig getestet und für die Verwendung mit den meisten Abzugslüftern zugelassen. Wählen Sie das Modell, das zu Ihrem Lüftermaß passt, und befestigen Sie es bei Bedarf mit Schnellspannklemmen und einem kurzen Stück Kanalschlauch an der Ausgangsseite.\u003c\/p\u003e\n\u003cp\u003eKanal-Filter-Schalldämpfer – Robuste Stahlkonstruktion mit dämpfenden Eigenschaften, die unerwünschte Kanal-, Filter-, Lüfter- und Sauggeräusche beseitigen oder reduzieren.\u003c\/p\u003e","brand":"CAN","offers":[{"title":"4\" x 45xm \/ 18cm","offer_id":42411417764055,"sku":"6101","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"5\" x 45cm  \/ 18cm","offer_id":39700494287032,"sku":"3091","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"6\" x 45cm \/ 30cm","offer_id":39700494319800,"sku":"3092","price":65.0,"currency_code":"GBP","in_stock":true},{"title":"8\" x 50cm  \/ 38cm","offer_id":39700494352568,"sku":"3093","price":75.0,"currency_code":"GBP","in_stock":true},{"title":"10\" x 50cm  \/ 38cm","offer_id":39700494385336,"sku":"3094","price":75.0,"currency_code":"GBP","in_stock":true},{"title":"10\" x 100cm  \/ 38cm","offer_id":39700494418104,"sku":"3095","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"12\" x 50cm  \/ 50cm","offer_id":39700494450872,"sku":"3096","price":100.0,"currency_code":"GBP","in_stock":true},{"title":"12\" x 100cm  \/ 38cm","offer_id":39700494483640,"sku":"3097","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"14\" x 50cm  \/ 50cm","offer_id":39700494516408,"sku":"3090","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"10\" x 45cm  \/ 30cm","offer_id":53616390013301,"sku":"11253","price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/products\/can-silencer-can-silencer-the-hydro-bros-1254944355.jpg?v=1787494274"},{"product_id":"silencedair-fan-silencer","title":"SilencedAir Fan Silencer","description":"\u003cp\u003e\u003cstrong\u003e** DISCONTINUED **\u003c\/strong\u003e :(\u003c\/p\u003e\n\u003cp\u003eUse a SilencedAir Fan Silencer to absorb the unwanted noise;  two silencers can be used in series where unwanted noise is a particular problem.\u003c\/p\u003e\n\u003cp\u003eWith the higher flow rates of our professional fans, air noise can become a problem. Air moving through ducts creates noise. The faster the air, the more noise is created. If noise is a problem, connect a Silenced Air to your system.\u003c\/p\u003e\n\u003cp\u003eA Silenced Air is most effective if positioned directly after a fan or after a tight bend in duct work. These high quality silencers are airtight and can be used in sealed ventilation systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffectively reduces noise in ventilation systems\u003c\/li\u003e\n\u003cli\u003eHigh quality galvanised steel, built to last\u003c\/li\u003e\n\u003cli\u003eFast and easy to install\u003c\/li\u003e\n\u003cli\u003eTwo can be used in series for maximum noise reduction\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GLOBAL AIR","offers":[{"title":"4\" \/ 30cm","offer_id":43480839094487,"sku":"7320","price":50.0,"currency_code":"GBP","in_stock":false},{"title":"5\" \/ 30cm","offer_id":43480839127255,"sku":"7321","price":55.0,"currency_code":"GBP","in_stock":false},{"title":"6\" \/ 30cm","offer_id":43480839160023,"sku":"7322","price":62.0,"currency_code":"GBP","in_stock":false},{"title":"8\" \/ 30cm","offer_id":43480839192791,"sku":"7323","price":75.0,"currency_code":"GBP","in_stock":false},{"title":"10\" \/ 30cm","offer_id":43480839225559,"sku":"7324","price":85.0,"currency_code":"GBP","in_stock":false},{"title":"12\" \/ 30cm","offer_id":43480839258327,"sku":"7325","price":95.0,"currency_code":"GBP","in_stock":false},{"title":"6\" \/ 60cm","offer_id":43480839291095,"sku":"7331","price":75.0,"currency_code":"GBP","in_stock":false},{"title":"8\" \/ 60cm","offer_id":43480839323863,"sku":"7332","price":85.0,"currency_code":"GBP","in_stock":false},{"title":"10\" \/ 60cm","offer_id":43480839356631,"sku":"7333","price":100.0,"currency_code":"GBP","in_stock":false},{"title":"12\" \/ 60cm","offer_id":43480839389399,"sku":"7334","price":120.0,"currency_code":"GBP","in_stock":false},{"title":"14\" \/ 60cm","offer_id":43480839422167,"sku":"7335","price":136.0,"currency_code":"GBP","in_stock":false},{"title":"8\" \/ 90cm","offer_id":43480839454935,"sku":"7341","price":110.0,"currency_code":"GBP","in_stock":false},{"title":"10\" \/ 90cm","offer_id":43480839487703,"sku":"7342","price":130.0,"currency_code":"GBP","in_stock":false},{"title":"12\" \/ 90cm","offer_id":43480839520471,"sku":"7343","price":155.0,"currency_code":"GBP","in_stock":false},{"title":"14\" \/ 90cm","offer_id":43480839553239,"sku":"7344","price":175.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/products\/global-air-silencer-silencedair-fan-silencer-the-hydro-bros-1254951552.jpg?v=1787304313"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/collections\/Silencers_12c7c346-be6c-45ac-ac81-2bc8d09a31c7.jpg?v=1780155819","url":"https:\/\/www.thehydrobros.com\/de\/collections\/silencers.oembed","provider":"The Hydro Bros","version":"1.0","type":"link"}