Impact of the Pandemic on Air Quality

The video discusses the surprising effects of the pandemic on air quality. While outdoor air quality improved due to reduced traffic and industrial activity, indoor air quality worsened as people spent more time at home. Indoor pollutants became more concentrated due to airtight homes and increased cooking and cleaning activities. The video highlights the risks of indoor air pollution and suggests solutions like using air purifiers and proper ventilation. Expert recommendations from Lydall are provided to improve indoor air quality, emphasizing the importance of awareness and proactive measures.

What was one of the surprising effects of the pandemic on air quality?

• Increased outdoor pollution

• Worse indoor air quality

• Improved outdoor air quality

• No change in air quality

What percentage did nitrogen dioxide levels drop globally during the pandemic?

• 20%

• 40%

• 60%

• 80%

How much more time did people spend indoors early in the pandemic?

• 30% more

• 40% more

• 20% more

• 10% more

Why did indoor air pollution increase during the pandemic?

• Increased cooking and cleaning indoors

• Better ventilation systems

• Less use of cleaning products

• More outdoor activities

What is a potential risk of increased indoor cooking during the pandemic?

• Improved indoor air quality

• Reduced need for ventilation

• Higher levels of dangerous gases

• Lower energy bills

What can happen when cleaning products react with other substances indoors?

• They become harmless

• They produce pleasant scents

• They improve air quality

• They form dangerous pollutants

What is one of the pollutants that can form from cleaning product reactions?

• Oxygen

• Formaldehyde

• Water vapor

• Carbon dioxide

What has the pandemic potentially encouraged regarding indoor air quality?

• Ignoring air quality issues

• Making overdue changes to improve air quality

• Reducing the use of air purifiers

• Closing windows more often

Which of the following is NOT recommended for improving indoor air quality?

• Installing MERV 13 or higher filters

• Using low-efficiency filters

• Opening windows for fresh air

• Using air purifiers with HEPA filters

What is the mission of the sponsor Lydall mentioned in the video?

• To create a noisier world

• To reduce the use of masks

• To create a cleaner, quieter, and safer world

• To increase indoor pollution