The Ultimate Indoor Air Pollution Quiz
by Staff
Counterintuitively, air pollution is often much worse inside the home than it is outdoors. A tremendous number of different types of pollutants can enter the home through common products and remain trapped there. Take this quiz to see if you've learned enough about indoor air quality to allow yourself to breathe easily.

How much worse can the quality of indoor air be than that of the air outdoors?

  • twice as bad
  • four times as bad
  • ten times as bad

Which of these does TerrEssentials' Home Air Quality Test Kit test for?

  • formaldehyde
  • chlorine
  • nitrogen

About what percent of their time do people spend indoors on average?

  • half
  • 75 percent
  • 90 percent

How much time does the average person spend at home, in particular?

  • 35 percent
  • 65 percent
  • 75 percent

Which of these is a potential outcome of long-term exposure to indoor air pollution?

  • coma
  • heart disease
  • hair loss

What type of home air filter is the most effective at blocking pollutants?

  • fiberglass
  • pleated
  • electrostatic

What is the MERV rating of an air filter?

  • Minimum Efficiency Reporting Value
  • Maximum Effectiveness Recorded Value
  • Micro-Electric Range Value

Although hazardous PCB was banned from production in America in 1970, where may it still be found?

  • wire coatings
  • insulation
  • carpets

Which other banned source of indoor air pollution remains in many homes in their insulation and floor tiles?

  • asbestos
  • formaldehyde
  • fluorine

What types of household products often contain harmful formaldehyde?

  • pressed wood
  • glass
  • plastics

Where does radon typically originate from?

  • underneath the home
  • the local air
  • the house's water supply

Which of these is considered a biological contaminant?

  • pollen
  • pesticides
  • tobacco smoke

Which of these is a harmful pollutant released by combustion?

  • carbon monoxide
  • nitrous oxide
  • chlorine

How much of the average person's exposure to pesticides occurs indoors?

  • 30 percent
  • 55 percent
  • 80 percent

How does the air quality of a commercial aircraft compare with that of the average home?

  • significantly worse
  • about the same
  • much better

What problem plagued many of the trailer homes supplied by FEMA to Hurricane Katrina victims?

  • high levels of formaldehyde
  • exposed fiberglass
  • PCB contamination

How many known poisons are found in secondhand smoke?

  • 24
  • 97
  • 200

How do combustion gases cause harm?

  • by preventing oxygen from flowing through your body
  • by increasing the risk of cancer
  • by reducing the immune system's effectiveness

Under what circumstances might opening windows and doors actually worsen your home's indoor air quality?

  • if you live in a very humid area
  • when it is particularly warm outside
  • if you have a radon pollution problem

What did Consumer Reports discover following tests of ionizing air cleaners?

  • that most are ineffective
  • that only the very expensive ones work, and they may not be worth the cost
  • that they can actually harm the indoor air quality by raising ozone levels