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- Ultra-quiet operation
- Premium build quality (you need to feel the quality of these fans!)
- Triple speed (using the ‘3-speed’ fan cable accessory)
- Sealed fan motor for dust-free operation & reduced noise
- Reliable with a long life expectancy (over 6yrs @ 25°C!)
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DustPROOF Series Technical Specifications We are committed to publishing accurate and truthful noise level data – taken directly from acoustic testing reports to recognised International Test Standards. At 1m distance in the average home/office environment noise levels below 10dBA will be difficult to discern above normal background noise levels.