Oil Diffuser

[Bogertophis]

Didn't you also ask about incense? I think this would be safer (?) since mist won't travel as well as smoke does; tiny droplets are heavier & hopefully few will
make it into her cage thru the few air holes, but I think I'd put a bit of fabric (or similar thing) over the holes anyway, to act as a filter. There's really no way
to guarantee that essential oils won't be harmful though, as there's all kinds of oils, & some might be fine while others won't.

Borrowing some bits from Wiki:
"... Improper use of essential oils may cause harm including allergic reactions and skin irritation, and children may be particularly susceptible
to the toxic effects of improper use."

"Use in aromatherapy"...
"...Use of essential oils may cause harm including allergic reactions and skin irritation; there has been at least one case of death." (they mean
humans, of course, & snakes are far more vulnerable)

Something I didn't know about them- and which would concern me, since snakes are not mammals either & may be harmed in similar ways.:
"Use as pesticide[edit]

Research has shown that essential oils have potential as a natural pesticide. In case studies, certain oils have been shown to have a variety of deterring effects on pests, specifically insects and select arthropods.^[27] These effects may include repelling, inhibiting digestion, stunting growth,^[28] decreasing rate of reproduction, or death of pests that consume the oil. However, the molecules within the oils that cause these effects are normally non-toxic for mammals. These specific actions of the molecules allow for widespread use of these green pesticides without harmful effects to anything other than pests.^[29] Essential oils that have been investigated include rose, lemon grass, lavender, thyme, peppermint, and eucalyptus.<sup>[30]"

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Remember these are NOT meant for internal use or application on (human skin) & even though they sound safe & "natural", they use advertising
buzzwords to make you trust & buy them. Plenty of "natural" things are toxic or poisonous, plus they may have "other ingredients" not labeled.

Another article to check out:
https://www.webmd.com/skin-problems-and-treatments/ss/slideshow-essential-oils ....excerpt:

"DO Consider Age

Young children and the elderly may be more sensitive to essential oils. So you may need to dilute them more. And you should totally avoid some oils, like birch and wintergreen. In even small amounts, those may cause serious problems in kids 6 or younger because they contain a chemical called methyl salicylate. Don’t use essential oils on a baby unless your pediatrician says it’s OK."

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Bottom line: I wouldn't use this anywhere near my snakes.