How many questions are in this quiz?

This quiz has 119 questions covering key ways to improve indoor air quality at home.

What format is the quiz in?

Each question has 4 options and there is no timer, so you can answer at your own pace.

Can I choose the number of questions and difficulty?

Yes. Select your preferred question count and difficulty before you start to match your time and comfort level.

What topics are included in indoor air quality improvements?

Expect questions on ventilation, filtration, humidity control, VOC reduction, and combustion safety like carbon monoxide risks.

What are common mistakes this quiz helps avoid?

It highlights pitfalls like masking odors instead of removing sources, using ozone/ionizers, and sealing a home without adding controlled ventilation.

Improve Indoor Air Quality at Home Quiz

About this quiz

What you’ll learn

Indoor air quality is shaped by everyday choices—how you ventilate, clean, heat, and manage moisture. This quiz helps you connect symptoms and sources to practical home improvements.

Each question has 4 options and there’s no timer, so you can think through tradeoffs like energy use vs. fresh air.

Skills you’ll practice

You’ll practice spotting pollutant sources (VOC off-gassing, combustion byproducts, dust and allergens) and choosing the most effective mitigation step. You’ll also build confidence with HVAC filter ratings, bathroom/kitchen exhaust strategies, and humidity targets.

Choosing the right ventilation approach for the room and season
Identifying moisture risks and preventing mold-friendly conditions
Understanding filtration basics (MERV/HEPA) and proper placement
Reducing VOCs from paints, cleaners, and new furnishings
Improving combustion safety (CO risks, venting, make-up air)

Common pitfalls and how difficulty is balanced

A frequent mistake is relying on “air fresheners” or ozone/ionizer gadgets instead of removing sources and improving ventilation/filtration. Another is over-sealing a home without adding controlled fresh-air exchange, which can trap pollutants.

Difficulty is mixed: easier items cover everyday best practices, while tougher questions dig into diagnosing causes, selecting the best first step, and avoiding solutions that create new problems. You can choose your question count and difficulty before starting to tailor the session to a quick review or a full challenge.