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Keep ventilation routes usable

Check ventilation openings and account for outdoor air conditions.

  • Time: Not specified
  • Cost: Not specified
  • Impact: Not specified
  • Difficulty: Not specified
  • Evidence not rated

Done when

Ventilation paths are unobstructed and used as designed.

Check ventilation openings and account for outdoor air conditions.

Who this is for

Have combustion-related ventilation assessed professionally; do not redesign it yourself.

Why this matters

Outdoor smoke or pollution matters when admitting fresh air.

How to do it

Guidance compiled from the references below; follow the applicability notes for this item.

  1. Identify the room’s designed openings or exhaust fans.
  2. Remove safely movable obstructions and report faults.
  3. Follow instructions and outdoor-air conditions rather than opening windows into smoke.

Evidence and references

  • Other
    Improving Indoor Air Quality(Opens in a new tab)U.S. Environmental Protection AgencyVentilation and source control, considering outdoor pollution. Does not guarantee safe air or replace ventilation design for fuel-burning equipment. อ่านประกอบการเรียบเรียง / Accessed: 2026-10-05

Last reviewed: · Version 2

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