We have an fresh air unit that firefighters use, can't remember if it's SCBA or what the Acronim is. We needed it as a standby unit when applying Methyl Bromide on our farm, but I think it was only used 1 time for around 5 minutes. It's like what the firefighters wear with clear face mask and air tank on your back. It could be connected to a hose for air source instead of tank.
Let me know if interested, we don't need it anymore.
David
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