Indoor Air Quality Audit

The condensed living space of the RV is very vulnerable to high humidity levels, insufficient ventilation and build-up of gas emissions. An overlooked indoor environment can initiate mold and cause related health issues. 

The U.S. Environmental Protection Agency (EPA) studies indicate that indoor levels of pollutants may be two to five times - and occasionally more than 100 times - higher than outdoor levels.

About the Pollutants

Items are listed alphabetically, not in order of importance or potency.


  • Health effects of CO depend on the CO concentration and length of exposure, as well as each individual's health condition.
  • Most people will not experience any symptoms from prolonged exposure to CO levels of approximately 1 to 70 ppm but some heart patients might experience an increase in chest pain.
  • As CO levels increase and remain above 70 ppm, symptoms become more noticeable and can include headache, fatigue and nausea.
  • At sustained CO concentrations above 150 to 200 ppm, disorientation, unconsciousness, and death are possible.

Source: US Consumer Product Safety Commission


  • Both, very low or high humidity values may cause some physical discomfort and/or health issues.
  • Extremely low humidity can cause bacteria, viruses, respiratory infections, allergies and asthma.
  • High levels of humidity can cause fungi (mold), mites, along with bacteria, viruses and chemical interactions.
  • Adverse health effects can be minimized by maintaining relative humidity between an optimum range.

Source: The National Center for Biotechnology Information



  • A high concentration can displace oxygen in the air, that can cause symptoms such as rapid breathing, rapid heart rate, clumsiness, emotional upsets and fatigue can result.
  • At higher concentrations, propane can harm the nervous system. Symptoms may include headache, nausea, dizziness, drowsiness and confusion. Can cause irregular heartbeat.

Source: Canadian Centre of Occupational Health and Safety

About The Inspection


PPM (parts per million) readings are taken in various locations of the RV. The readings are then analyzed and reported. 

Did you know that a faulty furnace can be a source of elevated carbon monoxide levels?


  • RH values are recorded for out-of-range values.
  • Sources of moisture, namely condensation, lack of ventilation, apparent leaks are identified and reported.
  • Recommendations are made to rectify problems and appropriate solutions are offered.


  • Permanent propane storage (ASME) tank and/or removable (DOT) tanks and all related valves, controls and pigtails are checked for leaks.
  • Exterior hoses and connections, and interior, visible and accessible supply lines are also scanned for leaks.
  • All leaks are clearly tagged for further follow-up and repairs.

About the Report

Inspection outcomes are further analyzed to:

  • Identify root causes and secondary sources of discovered defects.
  • Suggest pro-active solutions for discovered defects and provide related information, to avoid re-occurances.
  • Provide guidance and literature on appropriate alarms, sensors and other safety devices available in the marketplace, to monitor levels of various pollutants and gas emissions.

Contact your local RV Squad inspector!

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