# Ventilation concerns **URL:** \ **Category:** General Discussion\ **Created:** [May 18, 2022, 10:04pm UTC](https://forum.formlabs.com/t/ventilation-concerns/34005 "2022-05-18T22:04:26Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![djwilday\_amazon](https://avatars.discourse-cdn.com/v4/letter/d/8797f3/32.png) [@djwilday\_amazon](https://forum.formlabs.com/u/djwilday_amazon)\ **Post date:** [May 18, 2022, 10:04pm UTC](https://forum.formlabs.com/t/ventilation-concerns/34005/1 "2022-05-18T22:04:26Z")
I’ve been running a Form3 w/ Rigid 4K resin i my home office on and off for about the past 2 years. Everything I read was that it was safe to breath. I was running a print last night and happened to turn on the monitor I use for our summer smoke season and both HCH0 and TVOCs were quite high. I ran a strong air filter in the room for an hour or so and then, this morning, opened the room to the outside air. The levels dropped when I aired out the room and seemed good up until I started a print. I stepped out for some lunch and came back to high HCH0, and TVOC readings as well as an AQI reading of 175 (the outdoor AQI was between 4 and 8) I’m not positive but it seems the exhaust from running these machines is less benign than I was lead to believe. I plan to start writing down the values I’m getting before, during and after my prints when I need to run it at times I can’t open windows. Does anyone have more information on this? Any ventilation solutions? Thanks. ---
**Author:** ![Eks](https://avatars.discourse-cdn.com/v4/letter/e/958977/32.png) [@Eks](https://forum.formlabs.com/u/Eks)\ **Post date:** [May 18, 2022, 11:16pm UTC](https://forum.formlabs.com/t/ventilation-concerns/34005/2 "2022-05-18T23:16:07Z")
3D printers (not only resin ones) should be kept in a well ventilated (intake and exhaust) room. You can add some air purifier to the mix. We’re all different and some levels that can be semi-benign to some can be dangerous to others. In the long run it’s never good so better safe than sorry. Reminds me when I started I couldn’t stand IPA’s vapor. Now I like it which either makes me an addict or someone who got used to it. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\ **Post date:** [November 17, 2022, 11:16am UTC](https://forum.formlabs.com/t/ventilation-concerns/34005/3 "2022-11-17T11:16:29Z")
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