I have made some sound measurements of the Air Fanta 3 Pro as people have requested.
Note: I have a home set-up and so these numbers will be approximate. Soft furnishings, hard surfaces, rebounding sounds etc all affect results.
But it will provide some idea.
1/🧵
Note: I have a home set-up and so these numbers will be approximate. Soft furnishings, hard surfaces, rebounding sounds etc all affect results.
But it will provide some idea.
1/🧵
https://twitter.com/PeteUK7/status/1837309489382309988
Notes:
The sound is slightly rhythmic from the unit. Measurements bounce a bit. Averaged and rounded to the nearest dB.
NB: Considerable changes to pitch are noticeable even when sound pressure measurements are similar. So acceptance depends on personal sound perception.
2/
The sound is slightly rhythmic from the unit. Measurements bounce a bit. Averaged and rounded to the nearest dB.
NB: Considerable changes to pitch are noticeable even when sound pressure measurements are similar. So acceptance depends on personal sound perception.
2/
The following measurements are made using a Tadeto sound level meter SL720 from a distance of 1m (which is standard) and at 80cm height from floor with the unit placed on the floor. It is unable to measure anything below 30dBA.
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Adam provided CADR figures and power usage for various voltages and I have put my recorded approx sound levels next to each:
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As you can see, this makes the machine suitable for lots of different environments and with very significant CADR.
Running at 7.3v with a miserly use of power at 11.1w and a noise of 42dBA providing a CADR of 420m3/hr is likely suited to most environments inc. classrooms.
5/
Running at 7.3v with a miserly use of power at 11.1w and a noise of 42dBA providing a CADR of 420m3/hr is likely suited to most environments inc. classrooms.
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Summary of main advantages of this machine imho:
- It's well priced
- compact size & very lightweight
- highly portable
- high CADR performance over a wide variety of power and sound levels
- great design and metal grille to filters
- replacement filters are well priced
6/
- It's well priced
- compact size & very lightweight
- highly portable
- high CADR performance over a wide variety of power and sound levels
- great design and metal grille to filters
- replacement filters are well priced
6/
Just to give an idea of sound level if very close to the device (albeit that's not how sound levels you'll see are recorded; 1m away is standard), I repeated tests at 10cm, at the side of the device, at a height just below the fans. It's still really quiet at some speeds.
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