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| author | Adam Kelly <adam.kelly@phasezero.com.au> | 2020-01-14 16:35:10 +1100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-01-14 16:35:10 +1100 |
| commit | 8da0be97a156f7d3cf537eb8540c36e783f10ff4 (patch) | |
| tree | 5302d23e7d22de925cacc1fa305ab4bf8f38c973 | |
| parent | fafedec9a37a61be6962b0465a53050855ced6c4 (diff) | |
Update README.md
| -rw-r--r-- | README.md | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -23,3 +23,5 @@ The purpose of this project is to create a small air purifier suitable for a bed I selected a readily available HEPA H13 rated filter normally used in cheap vacuum cleaners and available from Bunnings Warehouse. The rest of the air purifier is based around that filter. I then selected a range of 120mm computer fans with relatively high static pressure ratings (>2.0 mmAq) that could operate on 12vDC. As the fans are 12vDC I used a USB 'booster cable' which steps-up the voltage of any USB-A port from 5v to 12v; these cables are available online or from a range of electronics shops such as Jaycar. After selecting the components I then designed a fan housing using Fusion 360 that provides the interface between the 120mm and the HEPA filter. The filter comes with a removable seal/cover at one end, so I use that end as the base of the unit and fit the fan to the top. After basic testing with a small smoke generator to ensure the selected fans could draw air through the filter to a reasonable standard I have determined the project suitable for release so others can create their own version of this device both for use in their homes and for further testing. + + |