{
  "id": "disaster/wildfire-vehicle-cabin-air-filter-myth",
  "signature": "AI advises staying inside a car with windows up and AC recirculation on during a wildfire to filter smoke",
  "signature_zh": "AI 建议在野火期间待在车内，关窗并开启空调内循环以过滤烟雾",
  "regex": ".*(?:stay\\s+in\\s+car|vehicle\\s+cabin|AC\\s+recirculation|wildfire\\s+smoke\\s+filter).*",
  "domain": "disaster",
  "category": "life_threatening",
  "subcategory": null,
  "root_cause": "Vehicle cabin air filters are not designed to filter fine particulate matter from wildfire smoke; heat and radiant flux can melt seals, melt tires, and cause fuel vapor ignition, turning the car into a death trap.",
  "root_cause_type": "generic",
  "root_cause_zh": "车辆空调滤芯并非设计用于过滤野火烟雾中的细颗粒物；热辐射会熔化密封件、轮胎，并导致燃油蒸气点火，使汽车成为死亡陷阱。",
  "versions": [
    {
      "version": "N/A",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Roll up windows completely and set HVAC to recirculate mode",
      "why_fails": "Recirculation mode still allows smoke ingress through door seals and vents; heat buildup cracks windows and ignites interior materials.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "Place wet towels around door frames to seal gaps",
      "why_fails": "Towels dry out rapidly in radiant heat, become flammable, and do not block fine particulate matter; they also trap heat inside.",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    },
    {
      "action": "Drive slowly through the fire front with headlights on",
      "why_fails": "Visibility near zero, tires may melt, fuel lines may rupture, and the engine may stall from oxygen deprivation.",
      "fail_rate": 0.95,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "If trapped in a vehicle during wildfire, park in a clear area away from vegetation, close all windows and vents, turn off engine, get on the floor and cover yourself with a wool blanket or jacket. Call 911 and provide GPS coordinates.",
      "success_rate": 0.7,
      "how": "If trapped in a vehicle during wildfire, park in a clear area away from vegetation, close all windows and vents, turn off engine, get on the floor and cover yourself with a wool blanket or jacket. Call 911 and provide GPS coordinates.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Abandon the vehicle if fire is approaching and you can reach a cleared area, low-lying ditch, or body of water. Do not stay inside unless no other option.",
      "success_rate": 0.8,
      "how": "Abandon the vehicle if fire is approaching and you can reach a cleared area, low-lying ditch, or body of water. Do not stay inside unless no other option.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "If trapped in a vehicle during wildfire, park in a clear area away from vegetation, close all windows and vents, turn off engine, get on the floor and cover yourself with a wool blanket or jacket. Call 911 and provide GPS coordinates.",
    "Abandon the vehicle if fire is approaching and you can reach a cleared area, low-lying ditch, or body of water. Do not stay inside unless no other option."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.ready.gov/wildfires",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.75,
  "resolvable": "partial",
  "first_seen": "2024-07-12",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}