{"hq_id":"hq-p-hom-000129","name":"Mold and mildew remover (bathroom spray)","category":{"primary":"household","secondary":"cleaning products","tags":["mold remover","mildew cleaner","bleach","sodium hypochlorite","corrosive"]},"product_tier":"HOM","overall_risk_level":"high","description":"Spray cleaner for mold and mildew removal, primarily in bathrooms, basements, and damp areas. Active ingredients are sodium hypochlorite (bleach, typically 1-5%) and/or sodium hydroxide (lye). Highly corrosive to skin, eyes, and mucous membranes. The critical safety issue is reactive mixing: combining bleach-based mold removers with ammonia-containing cleaners generates chloramine gas; mixing with acid cleaners generates chlorine gas. Both are potentially fatal. Chlorine gas exposure was responsible for ~6,300 US poison control calls in 2019.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.586,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":1.1,"vulnerability_escalated":true,"escalation_reason":"Child exposure group","compounds_resolved":2,"compounds_total":2,"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":{"sensitive_populations":"child, asthmatic","overall_risk":"high","primary_concerns":["Reactive mixing: chlorine or chloramine gas generation when mixed with ammonia or acid cleaners — potentially fatal","Corrosive: causes severe chemical burns to skin, eyes, and mucous membranes","Respiratory: chlorine fume inhalation in enclosed bathrooms causes pulmonary irritation"],"exposure_routes":"inhalation (fumes), dermal/ocular (splashback), ingestion (children)"},"exposure":{"routes":["inhalation","dermal","ocular","ingestion"],"contact_types":["inhalation","skin_direct","eye_splash","oral_incidental"],"users":["adult","child"],"duration":"acute","frequency":"weekly_to_monthly","scenarios":["Spraying in enclosed bathroom without ventilation","Splashback onto skin/eyes during application","MIXING with ammonia cleaner generating chloramine gas","MIXING with acid toilet cleaner generating chlorine gas","Child accessing stored product"],"notes":"Enclosed bathrooms concentrate chlorine fumes rapidly. Mixing incidents are the most dangerous scenario — chloramine and chlorine gas exposure can cause pulmonary edema and death."},"consumer_guidance":{"red_flags":[{"indicator":"Product stored near ammonia-based cleaners","meaning":"Accidental mixing risk — fatal gas generation","action":"Store bleach products and ammonia products in completely separate locations"}],"green_flags":[{"indicator":"Hydrogen peroxide-based mold remover","meaning":"No chlorine gas risk; effective antimicrobial; decomposes to water and oxygen","verification":"Check active ingredient is hydrogen peroxide (3-10%)"}],"what_to_ask":[],"alternatives":[{"name":"Hydrogen peroxide (3%) spray","notes":"Effective antifungal; no toxic gas generation; decomposes to water and oxygen"},{"name":"White vinegar + baking soda","notes":"Mildly effective on surface mold; zero toxicity; not effective for deep mold infestations"}],"notes":null},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"EPA — Registered antimicrobial product","citation":null,"requirements":"Must bear EPA registration if mold-killing claims are made.","compliance_status":null,"effective_date":null,"enforcing_agency":"EPA","penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":["Do not mix with other chemicals","Corrosive warning"],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":"DANGER","pictograms":["corrosion","exclamation_mark"],"hazard_statements":["Causes severe skin burns and eye damage","Harmful if inhaled"],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":true,"disposal_guidance":"Dilute and dispose down drain; recycle container","hazardous_waste":false,"expected_lifespan":"1-2_years"},"formulation":{"form":"liquid_spray","key_ingredients":[{"hq_id":"hq-c-org-000055","name":"Sodium hypochlorite (bleach)","role":"antimicrobial_oxidizer","concentration_pct":"1-5"},{"hq_id":"hq-c-ino-000019","name":"Sodium hydroxide (lye)","role":"alkaline_cleaner","concentration_pct":"0.5-2"},{"hq_id":null,"name":"Alkyl dimethyl benzyl ammonium chloride (surfactant)","role":"surfactant_biocide","concentration_pct":"0.1-1"},{"hq_id":null,"name":"Water","role":"solvent","concentration_pct":"90-95"}],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000055","compound_name":"Sodium hypochlorite (bleach)","role":"active_biocide","typical_concentration":null},{"hq_id":"hq-c-ino-000019","compound_name":"Sodium hydroxide (lye)","role":"alkaline_cleaner","typical_concentration":null}],"identifiers":{"common_names":["mold remover","mildew cleaner","mold spray","bathroom mold killer"],"aliases":[],"manufacturer":null,"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_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":"2026-03-24"},{"type":"regulation","title":"EPA — Registered antimicrobial product","jurisdiction":"USA","id":"src_02b53cb9"},{"id":"atsdr_hypochlorite","type":"report","title":"ATSDR Medical Management Guidelines for Sodium Hypochlorite","year":2014,"inherited_from_compound":"hq-c-org-000055"},{"id":"aapcc_bleach","type":"report","title":"American Association of Poison Control Centers: Bleach and Hypochlorite Exposure Data","year":2022,"inherited_from_compound":"hq-c-org-000055"},{"id":"epa_sodium_hydroxide_reg","type":"regulatory","title":"US EPA: Sodium Hydroxide — Integrated Risk Information System (IRIS) and Hazardous Substance Fact Sheet","year":2000,"inherited_from_compound":"hq-c-ino-000019"},{"id":"cpsc_caustics_guidance","type":"regulatory","title":"US CPSC: Caustic Household Products — Poison Prevention Packaging Act Compliance and Consumer Safety Data","year":2018,"inherited_from_compound":"hq-c-ino-000019"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-24","timestamp":"2026-05-14T01:25:52.631Z"}}