{"hq_id":"hq-p-hom-000090","name":"Reed Diffuser (fragrance oil)","category":{"primary":"household","secondary":"home_fragrance","tags":["fragrance","VOC","indoor_air_quality"]},"product_tier":"HOM","overall_risk_level":"moderate","description":"Home fragrance reed diffuser using rattan sticks to passively disperse fragrance oil into indoor air. Continuous low-level VOC and fragrance allergen emission over 1-3 months. Contains carrier solvents (dipropylene glycol, isopropyl myristate) plus synthetic/natural fragrance blends. Concern: chronic inhalation of fragrance aldehydes (linalool, limonene auto-oxidation products) and formaldehyde generation from terpene-ozone reactions in poorly ventilated rooms.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.4,"synthesis_method":"compound_composition","context_used":"human_infant","context_source":"available_priority","exposure_modifier":1,"vulnerability_escalated":false,"escalation_reason":null,"compounds_resolved":3,"compounds_total":3,"synthesis_date":"2026-05-09","synthesis_version":"1.2.0","methodology_note":"exposure_modifier and adjusted_magnitude are computed from ALETHEIA-calibrated heuristics (route × duration × frequency multipliers, clamped to [0.5, 1.4]). Multipliers are directionally informed by EPA Exposure Factors Handbook (2011) and CalEPA OEHHA but are not regulatory consensus. See /api/methodology for full disclosure."},"hazard_summary":{"overall_risk":"moderate","primary_concerns":["Chronic inhalation of fragrance VOCs and auto-oxidation products","Formaldehyde generation from terpene-ozone reactions","EU-regulated fragrance allergens (linalool, citral, limonene)"],"sensitive_populations":"Asthmatics, fragrance-sensitive individuals, infants, pregnant women","exposure_routes":"Inhalation (primary), dermal (accidental contact with oil)"},"exposure":{"routes":["inhalation"],"contact_types":[],"users":[],"duration":"1-3 months per fill","frequency":"continuous","scenarios":["Inhalation exposure during use of Reed Diffuser (fragrance oil)"],"notes":"Passive evaporation, 24/7 indoor air exposure"},"consumer_guidance":{"red_flags":["No ingredient disclosure beyond 'fragrance'","Placed in unventilated small rooms","Near infant sleep areas"],"green_flags":["Full fragrance ingredient disclosure","Placed in well-ventilated areas","IFRA-compliant formulation"],"what_to_ask":["What specific fragrance ingredients are used?","Is the formulation IFRA-compliant?"],"alternatives":["Essential oil diffuser with disclosed single oils","Open-window ventilation","Unscented home"],"notes":null},"regulatory":{"applicable_regulations":["IFRA Standards (fragrance concentration limits)","EU Cosmetics Regulation 1223/2009 (allergen labeling)","CPSC (liquid contents if >5% ethanol)"],"certifications":[],"labeling":{},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":"partially","disposal_guidance":"Empty liquid before recycling glass container; sticks to compost","hazardous_waste":false,"expected_lifespan":"1-3 months"},"formulation":{"form":"oil_solution","key_ingredients":[{"hq_id":"hq-c-org-001740","name":"Linalool","role":"fragrance","concentration_pct":"5-15"},{"hq_id":"hq-c-org-001741","name":"Citral","role":"fragrance","concentration_pct":"1-5"},{"hq_id":"hq-c-org-001131","name":"Dipropylene glycol","role":"carrier_solvent","concentration_pct":"50-70"},{"hq_id":"hq-c-org-000705","name":"Isopropyl myristate","role":"co-solvent","concentration_pct":"10-20"},{"hq_id":"hq-c-mix-000047","name":"Fragrance / Parfum","role":"fragrance_blend","concentration_pct":"15-30"}],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000739","compound_name":"Linalool","role":"fragrance_terpene","typical_concentration":null},{"hq_id":"hq-c-org-000740","compound_name":"Citral","role":"fragrance_aldehyde","typical_concentration":null},{"hq_id":"hq-c-mix-000047","compound_name":"Fragrance / Parfum","role":"fragrance_blend","typical_concentration":null}],"identifiers":{"manufacturer":"","common_names":[],"aliases":[],"brands":[]},"brand_examples":[{"brand":"Generic Mass-Market Brand A","manufacturer":"Consumer Products Corporation","market_position":"mass_market","notable":"Widely available mass-market option"},{"brand":"Generic Mass-Market Brand B","manufacturer":"Consumer Goods Ltd","market_position":"mass_market","notable":"Popular budget alternative"},{"brand":"Premium Brand A","manufacturer":"Premium Consumer Inc","market_position":"premium","notable":"Upscale premium positioning"},{"brand":"Professional Brand","manufacturer":"Professional Products Co","market_position":"professional","notable":"Professional/salon-grade option"},{"brand":"Specialty Eco-Brand","manufacturer":"Natural Products Ltd","market_position":"premium","notable":"Sustainable/natural product line"}],"brand_examples_disclaimer":"Representative branded products of this category. Concerning ingredients listed in materials.concerning[] apply to the category, not necessarily to every named brand. Specific formulations vary by SKU and may have changed since this record was written; consult the brand's current ingredient label before drawing brand-level conclusions.","sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-23"},{"type":"regulation","title":"IFRA Standards (fragrance concentration limits)","jurisdiction":"","id":"src_311b981b"},{"type":"regulation","title":"EU Cosmetics Regulation 1223/2009 (allergen labeling)","jurisdiction":"","year":2009,"id":"src_387ae25f"},{"type":"regulation","title":"CPSC (liquid contents if >5% ethanol)","jurisdiction":"","id":"src_fb134809"},{"id":"src_001","type":"database","title":"PubChem Compound Database","url":"https://pubchem.ncbi.nlm.nih.gov/compound/6549","year":2026,"inherited_from_compound":"hq-c-org-000739"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:25:42.595Z"}}