The description of the bag of holding in the DMG (p. 154) states:

Breathing creatures inside the bag can survive up to a number of minutes equal to 10 divided by the number of creatures [...]

Is there any RAW way to create sustainable conditions for breathing creatures inside a bag of holding (or other similar extradimensional spaces, for that matter)?

  • 5
    \$\begingroup\$ Are you looking for ways to change the bag so creatures no longer have limited air or would you consider changing a creature so it no longer needs to breathe a valid solution as well? This question already exists regarding the latter option: "How can my character avoid having to breathe, eat, drink, or sleep?" \$\endgroup\$ – Medix2 Feb 9 '20 at 6:34


...IF you're asking if there's a RAW way for someone to survive inside a Bag of Holding for longer than 10 minutes. If you're asking if it's possible to make a livable environment inside the Bag, then the answer is 'Not by RAW'.

While there is no RAW 'Create Air' spell, there is a Necklace of Adaptation. Its description says

While wearing this necklace, you can breathe normally in any environment...

In practice, it'd really have to be up to your DM of course. The full text of the Necklace implies that it works to safeguard one against things added to an already breathable environment like poison gases, etc.

However, the text does say 'any environment', so a RAW interpretation would mean literally any environment.

  • 2
    \$\begingroup\$ Out of interest, why did you change your link to point to the roll20 compendium? D&D Beyond is generally a more accurate transcription of the books and is basically the most official online reference you can get. \$\endgroup\$ – Carcer Feb 15 '20 at 13:06
  • 1
    \$\begingroup\$ @aaron9eee the Necklace of Adaptation is in the basic rules, so that entry is visible to anyone. \$\endgroup\$ – Carcer Feb 16 '20 at 8:50
  • 1
    \$\begingroup\$ If you had the ability to breathe underwater, could you fill the bag with water and live in it? \$\endgroup\$ – Thomas Markov Mar 11 '20 at 14:17
  • 3
    \$\begingroup\$ The item description says "Breathing creatures inside the bag can survive up to a number of minutes equal to 10 divided by the number of creatures". So, by RAW, it doesn't matter how you breathe, just whether or not you do. \$\endgroup\$ – aaron9eee Mar 11 '20 at 14:55
  • 3
    \$\begingroup\$ @aaron9eee The necklace says you can breathe in any environment. The bag says if you breathe, you can only survive 10 minutes. It doesn't mention anything about air. It's mainly the poor wording, but I'd say you're right about RAI, but RAW, Necklace won't save you. \$\endgroup\$ – Axoren Mar 12 '20 at 4:26

There is also the option of a pair of ventilating lungs (E:RftLW, p. 279) in the Eberron campaign world. They replace your normal lungs and allow you to breathe in a complete vacuum, as well as granting protection from several gas spells and the ability to create a gust of wind effect once per short rest.


Have a warforged character. Nothing like having a warforged in a bag. Surprise!

The description of the warforged's Constructed Resilience trait states, in part (E:RftLW, p. 36; WGtE, p. 70):

  • You don’t need to eat, drink, or breathe.
  • \$\begingroup\$ Hello, it would improve your answer if you back it up - why it is good to be a Warforged? With some sort of citation or sourcing and an explanation :) \$\endgroup\$ – Akixkisu Mar 11 '20 at 18:34
  • 1
    \$\begingroup\$ That's an interesting take on the warforged, but that doesn't answer the question. The question specifically states for "breathing creatures". (Plus unless they folded up, a warforged wouldn't fit. It's only 4 feet deep.) \$\endgroup\$ – JohnP Mar 11 '20 at 20:34

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.