Frequently asked questions
What do I need to use the AFRESH software?
You need a PC running Windows XP or later. You'll need to have about 80MB of disk space free. It's possible that AFRESH may work on earlier versions of Windows, but we haven't been able to test it on any of these. If you have any problems or questions, please get in touch.
Can I run AFRESH on a Mac, Linux or another operating system?
If you use a Mac, Linux or another OS, AFRESH isn't fully supported but can run. We've developed AFRESH for Windows users because there hasn't been a demand for any other operating systems. Please let me know if you'd like to use it on a different OS, as I might be able to make it easier to install and use.
it's possible to run AFRESH using the following method. Note that this is quite technical and may not be suitable for all users. Download the source code and install the required packages (listed in the README) using the "pip" command line tool. You can then run the file "dylosgui.py" using Python 2, a programming language preinstalled with most Macs and Linux distributions.
How does AFRESH convert Dylos logs to PM2.5 concentrations in ug/m3?
AFRESH uses an equation to convert from the Dylos's small particle count to PM2.5:
`y=2.x10^-7x^2+0.0049x + 11.7`
Please see this paper or contact us for full details. Note that the equation developed here is suitable for second-hand smoke, but may not be accurate for other sources of PM (or at very high, >1000ug/m3 concentrations). Feel free to contact us if you'd like to discuss this.
You need a PC running Windows XP or later. You'll need to have about 80MB of disk space free. It's possible that AFRESH may work on earlier versions of Windows, but we haven't been able to test it on any of these. If you have any problems or questions, please get in touch.
Can I run AFRESH on a Mac, Linux or another operating system?
If you use a Mac, Linux or another OS, AFRESH isn't fully supported but can run. We've developed AFRESH for Windows users because there hasn't been a demand for any other operating systems. Please let me know if you'd like to use it on a different OS, as I might be able to make it easier to install and use.
it's possible to run AFRESH using the following method. Note that this is quite technical and may not be suitable for all users. Download the source code and install the required packages (listed in the README) using the "pip" command line tool. You can then run the file "dylosgui.py" using Python 2, a programming language preinstalled with most Macs and Linux distributions.
How does AFRESH convert Dylos logs to PM2.5 concentrations in ug/m3?
AFRESH uses an equation to convert from the Dylos's small particle count to PM2.5:
`y=2.x10^-7x^2+0.0049x + 11.7`
Please see this paper or contact us for full details. Note that the equation developed here is suitable for second-hand smoke, but may not be accurate for other sources of PM (or at very high, >1000ug/m3 concentrations). Feel free to contact us if you'd like to discuss this.