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When are filtered colimits of (trivial) cofibrations still (trivial) cofibrations?

Let $\mathcal{M}$ be a

locally finitely presentable model category, cofibrantly generated by two sets $\mathcal{I}$ and $\mathcal{J}$ of cofibrations and trivial cofibrations with presentable domain and codomain.

I know that weak equivalences and fibrations are stable by filtered colimits.

  1. What can be said about cofibrations and trivial cofibrations?

  2. Is there a class of good examples in which this is known to be true?

  3. Are there additional axioms that can be imposed that ensure this?

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