How to ventilate a room without windows Reddit

My bedroom is practically in the attic but there are no windows. They say that if I tried to make a window, I'll only see the roof tiles...

Because of this, my room gets hot and starts to smell (I have 2 birds) since there's no way for air to circulate. I only have like a portable fan/ac thing. And the only way I can air out my room or keep it cool is to open the door, have a stand fan pointing into the room and turn on ac. It helps keep room cool and smells go away but I can't always do this. I mean bills...

Is there another way I can make my room cool and get some air circulation going?

I'm a phd student who does research on therapy. My office that I do therapy in is stupidly hot. I need to have the door closed during sessions for confidentiality, but want to alter the temp. Does anyone have any suggestions (or other subreddits to check with) on how to achieve this? I figured this was a good starting place as I need to do this the cheapest way possible.

Edit: This is a really cool conversation and I"m loving all the ideas people are coming up with. I'm going to explore a lot of them. I'll try to follow up with a picture post tomorrow that shows my working (and essentially living conditions)

Edit 2: It was suggested by a friend that I share that I do research on FAP. The reason for this is she says this about reddit: "they love some good fap"

Hey guys, I recently moved into a new apartment and I bought a new bed.

The problem is, the bed smells hardcore like chemicals, and I've been trying to air out this room for over a month now but it still stinks.

I leave the window open all day but theres not much airflow because the window only opens a little less than 4 inches.

Any ninja engineer tricks for me to get some proper airflow in this room and clear out the smell?

Here is a photo of the window - https://ibb.co/FBv0CVS

Also... I'm not sure which category of engineering this falls under so please let me know so I can add the proper flair.

if the heat is coming through the walls, and ceilings then you should insulate them.once properly insulated you should have less of a problem.

if possible pay to have an exhaust fan on the ceiling put in. make sure it is properly sealed, and capped on the roof so that nature can't get in through it.

replacing the ceiling light bulb with a ceiling fan is worth the money.

if all that fails then it is time for a windowless air conditioner.

Edit: I think I've figured something out. The sink shares a wall with our kitchenette area, which also has a door that leads outside. I'm going to try mounting a pvc pipe ventilation set up over the sink and run it up the wall, and setup an exhaust fan to have a duct hose come out on the kitchen side. Thinking that when we use the darkroom, we'll just have to run the hose out the door. The way our kitchenette is set up, the hose can be rolled up and hidden when not in use. Thoughts?

I'm setting up a community darkroom in a commercial space. The room is 152 square ft and the plan is to run youth workshops out of it with up to 5 people per workshop. Needless to say I'm going to need proper ventilation for our students safety. The room doesn't have windows and there's no way I can add an opening to the outside, but there is a door that leads to a wide hallway and there is another door at the end of the hallway which leads outside not too far away. The whole space has central air and there is an air conditioning vent in the room. Any ideas as to how we can add proper ventilation to this room? I was thinking of purchasing a vent/fan and installing it in the door - has anyone done that? Or somehow running a vent hose from the room to the end of the hallway? Here's the layout for reference.

You can think of the room as more or less a bottle shape, with the bottle opening being the one door.

Should I place the fan at the bottom of the bottle to push stale air out of the most remote section of the room?

Or should I just place it in the doorway? And if I do that, should it face in to bring fresh air in, or out to push stale air out?

Thank you for reading my very boring question.

Are you sure opening a window is 100% out of the question? Can you at least open the window of the room you're currently in by the smallest possible amount? It will help a lot for airflow, and allow relatively little ingress for minibeasts or burglars. If not:

Do you have actual vents, perhaps directly above the windows themselves? If possible, open those.

Keep every door in the house wide open if possible - this allows air to flow around the house better.

For the sake of keeping yourself cool, wet your hair when you get up even if you don't wash it; drink cold drinks; wear thin clothes in as few layers as possible.

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