Open printers
Is it safe to 3D print in a bedroom/apartment?
By SSS
Published . Updated .
- Nozzle190–230 °C(374–446 °F)
- Bed35–45 °C(95–113 °F)
- Speedup to 300 mm/s
- Dry50 °C · 8 h(122 °F)
- Density1.24 g/cm³
Nozzle, Bed, Speed, Drying. Source: Bambu Lab TDS · Last checked 14 October 2026
Ranked filaments
| Rank | Filament | Material | Nozzle | Bed | Datasheet | Buy |
|---|---|---|---|---|---|---|
| 1 | Bambu Lab · PLA Basic | PLA | 190–230 °C374–446 °F | 35–45 °C95–113 °F | Datasheet | |
Technical data sheet checked 14 October 2026 lists a nozzle of 190–230 °C (374–446 °F), a bed of 35–45 °C (95–113 °F), and blast-oven drying at 50 °C (122 °F) for 8 h. No safety certification is listed. The sheet is not an indoor-air clearance. | ||||||
| 2 | Bambu Lab · ABS | ABS | 230–260 °C446–500 °F | 90–110 °C194–230 °F | Datasheet | |
Open Filament Database, dataset imported 13 October 2026, lists a nozzle of 230–260 °C (446–500 °F) and a bed of 90–110 °C (194–230 °F). The technical data sheet, checked 18 October 2026, stores drying at 80 °C (176 °F) for 8 h. The fumes guidance is Prusa's article and the 2016 study, not a sentence on this sheet. No safety certification is listed. | ||||||
| 3 | Bambu Lab · ASA | ASA | 235–260 °C455–500 °F | 90–110 °C194–230 °F | Datasheet | |
Open Filament Database, dataset imported 13 October 2026, lists a nozzle of 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F). The technical data sheet, checked 18 October 2026, stores drying at 80 °C (176 °F) for 8 h. Prusa's ASA article names styrene and says to ventilate. This sheet does not cancel that. No safety certification is listed. | ||||||
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A bedroom printer is a printer in the room you sleep in. PLA odor is the 2016 paper on PLA particles and lactide. ABS and ASA fumes is styrene and Prusa's ventilate instruction. Open printers is which machines have no enclosure. None of those pages is a certificate that an apartment is fine.
The paper, then the spools
Azimi and coauthors, Environmental Science & Technology, 2016, measured ultrafine particles from PLA printers and lactide from PLA at about 4 to 5 micrograms per minute. Styrene from ABS and HIPS in that paper is about 10 to 110 micrograms per minute. The screening result they state is caution in a poorly ventilated small office, or without combined gas and particle filtration. The paper does not certify a hobby filter.
Prusa's ABS article and ASA article say to print in a well-ventilated room because the materials release fumes, and both name styrene. Smell is not the measurement. Those are the same sentences already used on the fumes page.
Bambu PLA Basic lists 190–230 °C (374–446 °F), a bed of 35–45 °C (95–113 °F), and drying at 50 °C (122 °F) for 8 h, sheet checked 14 October 2026. Bambu ABS lists 230–260 °C (446–500 °F) and a bed of 90–110 °C (194–230 °F) in the Open Filament Database, dataset imported 13 October 2026, and the technical data sheet checked 18 October 2026 stores drying at 80 °C (176 °F) for 8 h. Bambu ASA lists 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F) in that same database import, and its sheet checked 18 October 2026 stores drying at 80 °C (176 °F) for 8 h. No safety certification is listed. The order is the polymer the comment calls minimal, then the two Prusa tells you to ventilate. It is not a ranking of which one to run next to a bed.
What the community says
a Reddit thread in r/prusa3d: A comment says PLA is safe and the fumes are minimal, and adds a humidity warning about an open window.
a Reddit thread in r/prusa3d: The 2016 paper still says to be careful in a poorly ventilated small room.
Pros and cons
Pros
- The emission figures are the 2016 paper already cited for ABS, ASA, and PLA odor.
- ABS and ASA stay on Prusa's ventilate instruction instead of a bedroom compromise.
Cons
- No safety data sheet was read for a bedroom limit. The indoor-air statement is the 2016 paper and Prusa's material articles.
- The highest-scored bedroom comment says PLA is safe and the fumes are minimal. That sentence disagrees with the paper's caution. It is still only a comment.
Printer considerations
- Azimi and coauthors, Environmental Science & Technology, 2016, say to be careful in a poorly ventilated small office or without combined gas and particle filtration. The paper does not certify a hobby HEPA or carbon box. A bedroom with the door closed is the small-room case they are describing.
- The same paper's styrene result for ABS and HIPS is about 10 to 110 micrograms per minute. Lower lactide from PLA is not zero particles. The comparison is on the ABS fumes page.
- A score-95 comment ranks ventilation from an external vent down to nothing. That order is the commenter's. It is not an agency ranking, and it does not name a filter model this catalog sells.
Sources & notes
Published . Updated .
- Azimi et al. 2016, Environmental Science & Technology, DOI 10.1021/acs.est.5b04983 other
- ABS, Prusa Knowledge Base manufacturer
- ASA, Prusa Knowledge Base manufacturer
- Bambu PLA Basic technical data sheet datasheet
- Open Filament Database, Bambu Lab ABS other
- Bambu ABS technical data sheet datasheet
- Open Filament Database, Bambu Lab ASA other
- Bambu ASA technical data sheet datasheet
- a Reddit thread in r/BambuLab reddit
- a Reddit thread in r/prusa3d reddit
- a Reddit thread in r/3Dprinting reddit
- a Reddit thread in r/BambuLab reddit
- a Reddit thread in r/BambuLab reddit
Related questions
- Does PLA smell / is printing PLA indoors safe?PLA
- Are ABS/ASA fumes dangerous, and do I need ventilation?ABS
- What filament should I use on a printer with no enclosure?Open printers
Related data
- Cheapest filament per kg
- Cheapest PLA per kg
- Will my dryer cover this filament?
- Drying dataset
- How long to dry PETG
- PLA drying temperature and time
- ABS drying temperature and time
- ASA drying temperature and time
Questions
If I only print PLA and I cannot smell it, is the bedroom fine?
Smell is not the measurement. Azimi and coauthors, Environmental Science & Technology, 2016, still measured ultrafine particles from PLA printers and lactide from PLA at about 4 to 5 micrograms per minute. The paper says to be careful in a poorly ventilated small office or without combined gas and particle filtration. PLA odor is that paper on PLA. A score-34 comment that calls PLA safe is a comment.
Can I print ABS or ASA in an apartment if I cannot vent outside?
Prusa's ABS and ASA articles say to print them in a well-ventilated room because both release fumes, and both name styrene. ABS and ASA fumes quotes those articles and the 2016 styrene range, about 10 to 110 micrograms per minute for ABS and HIPS. The paper does not certify a recirculating hobby filter. Open printers is the machine question, not a room clearance.