Greenwood Airvac on X: "@spiderbrian17 @SpeedyFreakGame Attached is a copy of the old installation guide for the S90 series of fans, if the unit is making a loud whirring sound then it's
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Greenwood Airvac AXS100 Bathroom / Toilet Extractor Fan 100mm / 4 Inch - Standard Version (NO Timer) : Amazon.co.uk: DIY & Tools
Greenwood Airvac on X: "@spiderbrian17 @SpeedyFreakGame Attached is a copy of the old installation guide for the S90 series of fans, if the unit is making a loud whirring sound then it's
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