{"hq_id":"hq-p-out-000049","name":"Portable Generator Exhaust","category":{"primary":"outdoor","secondary":"equipment","tags":["generator","carbon monoxide","exhaust","CO poisoning","gasoline engine"]},"product_tier":"OUT","overall_risk_level":"extreme","description":"Gasoline-powered portable generators producing exhaust containing carbon monoxide (CO), nitrogen oxides, particulate matter, and unburned hydrocarbons. CO from generators is the #1 cause of non-fire carbon monoxide deaths in the US. Generators used indoors or in enclosed spaces during power outages cause approximately 80 deaths and 800+ hospitalizations annually.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.878,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":0.77,"vulnerability_escalated":true,"escalation_reason":"Child exposure group","compounds_resolved":2,"compounds_total":2,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"all populations — CO is acutely lethal","overall_risk":"extreme","primary_concerns":["Carbon monoxide — odorless, colorless, lethal within minutes in enclosed spaces","Single leading cause of non-fire CO deaths in the US","Risk highest during power outages when generators used improperly"],"exposure_routes":"Inhalation of exhaust gases"},"exposure":{"routes":["inhalation"],"contact_types":["inhalation"],"users":["adult","child"],"duration":"hours","frequency":"rarely","scenarios":["Indoor use during power outage (LETHAL — do not use indoors)","Use in attached garage with open door to house","Use near open windows or air intakes","Proper outdoor use at minimum 20 feet from any opening"],"notes":"A portable generator can produce CO concentrations lethal within 5-10 minutes in an enclosed garage. CPSC requires CO shutoff sensors on new generators (effective 2024). CO is odorless and colorless — victims lose consciousness before recognizing danger."},"consumer_guidance":{"usage_warning":"NEVER use a portable generator indoors, in a garage, or in any enclosed or partially enclosed space. Place generator at least 20 feet from any door, window, or vent. Install battery-operated CO detectors in home. Purchase generators with CPSC-mandated CO shutoff sensors.","safer_alternatives":["Battery backup systems (Jackery, EcoFlow, Tesla Powerwall)","Solar generators with battery storage","Inverter generators with mandatory CO shutoff sensors (post-2024)"],"alternatives":[{"name":"Battery backup systems","notes":"Jackery, EcoFlow, Tesla Powerwall"},{"name":"Solar generators with battery storage","notes":"Safer alternative to conventional products"},{"name":"Inverter generators with mandatory CO shutoff sensors","notes":"post-2024"}],"red_flags":[{"indicator":"Product used in enclosed or poorly ventilated space","meaning":"Chemical exposure concentrations increase dramatically in enclosed spaces.","action":"Use only in well-ventilated outdoor areas as intended."}],"green_flags":[{"indicator":"Third-party safety certification visible on packaging","meaning":"Product has been independently tested to applicable safety standards.","verification":"Look for certification logos (CPSIA, ASTM, EN, NSF, UL, OEKO-TEX)."}],"what_to_ask":[{"question":"What materials is this product made from?","why_it_matters":"Material composition determines chemical exposure potential.","good_answer":"Full material disclosure with known safe materials.","bad_answer":"No material information or unspecified."}]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"EPA FIFRA / TSCA (as applicable)","citation":null,"requirements":"Pesticide registration under FIFRA. Chemical substances under TSCA.","compliance_status":null,"effective_date":null,"enforcing_agency":"EPA","penalties":null,"source_ref":null},{"jurisdiction":"USA -- California","regulation":"California Proposition 65","citation":null,"requirements":"Products containing listed chemicals require warnings.","compliance_status":null,"effective_date":null,"enforcing_agency":"OEHHA","penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"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":false,"disposal_guidance":"Scrap metal recycling. Properly drain fuel before disposal.","hazardous_waste":false,"expected_lifespan":"5-15_years"},"formulation":{"form":"varies","key_ingredients":[{"hq_id":"hq-c-org-000043","name":"Carbon monoxide","role":"exhaust_component","concentration_pct":"trace"},{"hq_id":"hq-c-org-000010","name":"Benzene","role":"exhaust_component","concentration_pct":"trace"}],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000043","compound_name":null,"role":"exhaust_component","typical_concentration":"800-1200 ppm"},{"hq_id":"hq-c-org-000010","compound_name":null,"role":"exhaust_component","typical_concentration":"trace"}],"identifiers":{"common_names":["portable generator exhaust"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Honda","manufacturer":"Honda Motor","market_position":"premium","notable":"Premium portable generator brand"},{"brand":"Generac","manufacturer":"Generac","market_position":"mass_market","notable":"Market-leading generator brand"},{"brand":"Champion","manufacturer":"Champion Power Equipment","market_position":"mass_market","notable":"Budget portable generators"}],"sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-25"},{"type":"regulation","title":"EPA FIFRA / TSCA (as applicable)","jurisdiction":"USA","id":"src_70a4d79c"},{"type":"regulation","title":"California Proposition 65","jurisdiction":"USA -- California","id":"src_fe1d5adc"},{"id":"cdc_co_poisoning","type":"report","title":"CDC: Carbon Monoxide Poisoning — Facts and Prevention","year":2023,"inherited_from_compound":"hq-c-org-000043"},{"id":"atsdr_co","type":"report","title":"ATSDR Toxicological Profile for Carbon Monoxide","year":2012,"inherited_from_compound":"hq-c-org-000043"},{"id":"iarc_100f","type":"regulatory","title":"IARC Monographs Volume 100F: Benzene","year":2012,"inherited_from_compound":"hq-c-org-000010"},{"id":"epa_benzene_iris","type":"regulatory","title":"US EPA IRIS Assessment: Benzene","year":1998,"inherited_from_compound":"hq-c-org-000010"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-01T14:20:19.598Z"}}