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Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
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From the manufacturer’s Safety Data Sheet, Section 8
“The retail packaging carries a 'Causes skin and serious eye irritation' caution. This corresponds to H319 (eye irritation Cat 2A). Eye contact is not a normal pathway for a passive hanging diffuser · no spray event occurs. The splash_risk trigger applies only when handling a damaged or leaking unit.”
— Yankee Candle
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals…”
ANSI Z87.1 (incorporated via §1910.6)
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“H317 (skin sensitizer Cat 1) is classified in the SDS. Skin contact is not a pathway during normal hanging use. The SDS lists 'Mixture of Aromatic Fragrance Substances' · individual sensitizer compounds (patchouli, musk) are not individually named, but the H317 classification confirms fragrance sensitizers are present.”
— Yankee Candle
U.S. regulatory standard
29 CFR 1910.138(a); 1910.132(d)
“appropriate hand protection when employees' hands are exposed to hazards such as those from skin absorption of harmful substances.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“No respiratory H-codes (H334, H335) are present in the 2011 SDS. The product is a passive gel diffuser with continuous low-level fragrance emission in the enclosed vehicle cabin. No inhalation escalation is warranted by the SDS chemistry. The H317 fragrance sensitizer classification means individuals with documented fragrance sensitivity should note the continuous enclosed-cabin exposure.”
— Yankee Candle
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
Last reviewed May 25, 2026
TL;DR Lasts 15-25 days in most cars, not the full 30 on the box, but a solid result for a passive hanging jar. MidSummer's Night (patchouli, musk, cedarwood) earns consistently positive reviews. Chemistry is mild: signal word WARNING, H317 and H319, no DANGER.
A solid gel jar hanging from the rear-view mirror that releases patchouli, musk, and cedarwood fragrance passively as the gel evaporates. It masks cabin odors; the "Odor Neutralizing" label claim is fragrance coverage -- no enzyme or activated-carbon mechanism is disclosed. owners broadly report 15-25 days of noticeable scent; garage-kept vehicles may approach the 30-day label claim. Scent starts strong and mellows to a background cologne after a few days.
Best for drivers who want passive, zero-maintenance cabin fragrance with no vent-clip concerns. The hanging format fits any mirror. Skip it if you need genuine odor elimination; an enzyme-based spray addresses the source. Also skip if you prefer faint options: intensity starts high with no adjustment mechanism.
Signal word WARNING. The SDS classifies H317 (skin sensitizer) and H411 (chronic aquatic toxicity); the retail packaging adds H319 (eye irritation), postdating the 2011 SDS. Direct skin or eye contact is not a typical pathway in normal hanging use. The H317 fragrance sensitizer classification means individuals with fragrance sensitivity should note the enclosed-cabin exposure context. No Prop 65 warning. H411 flags the fragrance as chronically toxic to aquatic life; dispose of the gel properly.
The label claims up to 30 days. owners broadly report 15-25 days of noticeable scent under typical daily-driving conditions. Garage-kept or low-mileage vehicles may approach the label claim; daily commuters in hot climates tend toward the shorter end of the range. The 'Ultimate' designation is Yankee Candle's premium hanging jar tier, which is considered stronger and longer-lasting than the standard Car Jar.
Fragrance masking only. The label says 'Neutralizes unwanted odors' but the SDS discloses only 'Mixture of Aromatic Fragrance Substances' · no enzyme, activated carbon, or cyclodextrin mechanism is documented. It covers cabin smells with the MidSummer's Night scent rather than chemically breaking them down. For genuine odor elimination, an enzyme-based spray is the better tool.
Yankee Candle's own scent profile for it is warm patchouli and alluring musk with a stargazing-on-a-cool-summer-night character. The scent itself reads as deep, woodsy, and sophisticated · an earthy cologne character. It is one of Yankee Candle's flagship fragrances from their candle line, and it tends to come on strong at first before mellowing to a pleasant background note after a few days.
Yes · an older SDS (August 2011, MSDS-era format) is available via the Staples SDS archive. It classifies H317 (skin sensitizer) and H411 (chronic aquatic toxicity). The SDS is 15 years old; a current GHS 16-section version has not been located publicly. The retail packaging (ca. 2017) adds a 'Causes skin and serious eye irritation' caution that corresponds to H319 but does not appear in the 2011 SDS.
Marketing copy from Yankee Candle, via Amazon. Not editorial.
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