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?
About what percent of their time do people spend indoors on average?
How much time does the average person spend at home, in particular?
Which of these is a potential outcome of long-term exposure to indoor air pollution?
What type of home air filter is the most effective at blocking pollutants?
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?
Which other banned source of indoor air pollution remains in many homes in their insulation and floor tiles?
What types of household products often contain harmful formaldehyde?
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?
Which of these is a harmful pollutant released by combustion?
How much of the average person's exposure to pesticides occurs indoors?
How does the air quality of a commercial aircraft compare with that of the average home?
about the same
What problem plagued many of the trailer homes supplied by FEMA to Hurricane Katrina victims?
high levels of formaldehyde
How many known poisons are found in secondhand smoke?
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