https://stream.echo6.co/videos/watch/88998d21-6d93-4985-bdd1-e2ce4fb87a8d I thought it would be interesting to take a look at a small home air filter unit with a fairly big pleated filter. It uses quite a small fan, so it creates enough noise to be annoying if used in a bedroom, unless you wanted background noise. (It helps some people sleep). The fan speed control method is unusual. A search showed that the replacement filter costs as much as the full unit supplied with one! I wonder if that's just due to the wide range of prices online, or if it's just to hook customers into an ongoing expense. When I was looking on eBay I noticed that people were selling used units with old filters. Aside from getting a used filter from an unknown environment, you don't know how long the filter has been in use. Others were being sold with no filter, probably because they couldn't get a new one or it cost more than a new unit. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. Wed, 15 Apr 2026 11:21:13 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/88998d21-6d93-4985-bdd1-e2ce4fb87a8d All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.