Scented Wax Melts
Flame-free warmers marketed as a cleaner alternative to candles.
How this score is built
- 100Start
- 81.6Chemical hazard 4 × 4.6−18.4
- 64.6Everyday exposure 5 × 3.4−17
- 57Persistence 3 × 2.6−7.8, then rounded to 57
- ModerateThe band57 sits in 40–59.
What each input rests on
| Input | Rating | Evidence |
|---|---|---|
| Chemical hazard | 4/10 | unsourced input |
| Everyday exposure | 5/10 |
|
| Persistence | 3/10 | unsourced input |
Ratings are editorial. A study listed here supports the rating; it did not compute it. How the index is built
What this means for you
Because they are flameless, wax melts are often assumed to be the clean option. Research from Purdue published in Environmental Science & Technology Letters found they release high levels of fragrance terpenes that react with indoor ozone to form nanoparticles, at levels comparable to combustion sources.
Evidence strength: moderate
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