It gets pretty hot here in the summer and my apartment only has a single wall air conditioner that does an okay job of cooling down the living room, but has lots of issues reaching the rest of the house. We emailed our landlord about putting in window AC units in the bedrooms, who then emailed the HOA about it. The HOA said that in theory they have no problem with it but putting a window AC unit in a bedroom is illegal in our city because apparently in case of a fire we're supposed to be able to jump out of the second story window onto the cement below and the law assumes that we're too stupid to pull the AC unit out of the window. Whatever, I digress, we called the city government people to confirm that this is an actual law because the HOA people didn't actually cite anything and it is in fact true.
In the email, the HOA said that a workaround to that is to get a portable AC unit and have a hose that goes up to the window to vent air out, which we knew were a thing, but as far as we knew they generally required water to be emptied out every so often and weren't an ideal solution to run while you're sleeping (our roommate works night shift and sleeps during the day which is part of the reason why this is such a problem). But they then said that portable AC units exist that don't require you to vent water out - my boyfriend is the one who has done most of the research regarding this and he hadn't heard of them, so I was wondering if any of you knew about any or had any experience with them?