I would like to know please how long does it take Freon refrigerant to completely disappear from a room after an accidental major leakage? Does it stick to surfaces , clothes or walls? Does natural ventilation get rid of it? Does it disappear 100%?

Thank you very much in advance.

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    $\begingroup$ "Freon" is a brand name, used for at least two dozen different products. Somewhere on the back of whatever instrument leaked, you should find a label with "R-", followed by a 2-4 digit number and optionally one or two lowercase letters. en.wikipedia.org/wiki/List_of_refrigerants $\endgroup$ – Karl Jan 3 '20 at 11:18
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    $\begingroup$ But, if we are talking about a household refrigerator: Open the window for as long as you would after boiling over and burning a pot of milk, and it´s completely gone. $\endgroup$ – Karl Jan 3 '20 at 14:25
  • $\begingroup$ If you have had a freon leak, I would recommend getting in contact with your local fire department. Certain forms of freon (CFCs) are potent ozone depleters and have been banned under the Montréal protocol. I doubt your freon leak is from this older version of the refrigerant, but I would definitely recommend checking it out. If your freon is not a CFC it is probably an HCFC, which is marginally less toxic. $\endgroup$ – Eli Jones Jan 3 '20 at 15:02
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    $\begingroup$ @EliJones, ozone-depleting does not mean toxic. Once the Freon has escaped, there's little point in doing anything but dispersing it. That said, large Halon fire suppressors in an enclosed space, e.g. a computer server room, do replace the air and can cause suffocation until the space is ventilated, which is not the question asked. $\endgroup$ – DrMoishe Pippik Jan 5 '20 at 2:52
  • $\begingroup$ While, yes, this does not mean it is toxic, there could still be a possibility of other compressors containing freon, so it would be better to check it out to prevent the future release of the possibly ozone-depleting gas. $\endgroup$ – Eli Jones Jan 5 '20 at 3:03

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