I have found CLO2 air disinfecting devices in Japan and China that you can be in the room while it is running, as it keeps the levels down to ultra safe .03 ppm, which they also have monitors for safety. Haven't been able to get any response back from any of the companies. Also, ozone based room disinfectors can be had for about $100.00. They require maybe 45 minutes to an hour to do a room (with you not in it) and then a little time before you return.