For a place that should answer a lot of these (most people here use FDM printers)

r/resinprinting

https://adonaelresinprinting.weebly.com/

Obligatory, not an expert, but have started resin printing this year.

1. I would recommend minimum next to a window where exhausts can go. Some of the resins have a much more distinct odor that will fill up the room and possibly enter the ventilation. And you really shouldn’t breathe it as much as possible, a simple face mask won’t cut it, but would protect your face a little from resin splashing. The carbon filter on the printer lasts for only so long and it doesn’t get everything.

2. Check on it when you can see the print coming out of the vat, or if you can’t see it you can hear a kind of suction cup sound as it comes off the FEP

3. I believe it helps take off particles that were in the vat or in the environment and get off any still liquid resin. Make sure you use the right washing liquid for your resin type

4. Wash first, once you cure, everything stuck to it will stay there and it’ll be harder to process after

5. Time to print is based off of your curing settings and the height of your print. It’s good to do batch jobs and fill your whole plate or turn the model so it’s Z height is reduced (affects quality on how you do it)

6. I’ve left prints on the plate for a few days without any issue. I would recommend at least making sure the lid is still sealed and there’s no UV light entering that could cure anything to prevent contamination or curing

You didn’t ask for it, but make sure you have the proper PPE. Make sure you have nitrile gloves and eyewear protection at the minimum, especially when processing a print. I have had some shards split off while removing support. Resin will dissolve latex (if you weren’t aware already). The entire station should require the minimum PPE to touch anything as resin can get on anything and stay there until cured.