Ventilation Flashcards
What is indoor air quality?
Indoor air quality refers to the quality of air inside a building or structure, including factors such as temperature, humidity, pollutants, and ventilation.
What are some common indoor air pollutants?
Common indoor air pollutants include volatile organic compounds (VOCs), carbon monoxide, nitrogen dioxide, radon, mold, and allergens such as dust and pollen.
Why is proper ventilation important for indoor air quality?
Proper ventilation helps to remove indoor air pollutants, regulate temperature and humidity, and provide fresh air for occupants.
What are some health effects of poor indoor air quality?
Poor indoor air quality can lead to a range of health effects, including headaches, fatigue, respiratory problems, and in severe cases, cancer or death.
What is the recommended range for indoor relative humidity?
The recommended range for indoor relative humidity is between 30% and 50%.
What is the difference between mechanical and natural ventilation?
Mechanical ventilation uses fans, ducts, and other equipment to circulate and exchange air, while natural ventilation relies on air flow through windows, doors, and other openings.
What is an air filter and how does it work?
An air filter is a device that removes pollutants from indoor air by trapping them in a mesh or membrane. Filters work by allowing air to pass through while capturing particles such as dust, pollen, and mold.
How often should air filters be replaced?
Air filters should be replaced every 3-6 months, or more frequently if they become dirty or clogged.
What is a heat recovery ventilator (HRV) and how does it work?
A heat recovery ventilator is a device that exchanges heat between indoor and outdoor air streams, helping to regulate temperature and humidity while providing fresh air. HRVs work by transferring heat from outgoing air to incoming air, reducing energy waste.
What are some strategies for improving indoor air quality in a home or building?
Strategies for improving indoor air quality include increasing ventilation, using air filters, reducing sources of pollution, controlling humidity, and regularly cleaning surfaces and carpets.
What are some common sources of indoor air pollution?
Common sources of indoor air pollution include combustion appliances (such as stoves and heaters), tobacco smoke, building materials and furnishings, and outdoor air pollution that enters through openings.
What is Sick Building Syndrome?
Sick Building Syndrome is a condition in which occupants of a building experience symptoms such as headaches, fatigue, and respiratory problems due to poor indoor air quality. The cause is often unknown or difficult to identify.
What is the importance of air quality monitoring?
Air quality monitoring can help to identify sources of pollution and assess the effectiveness of ventilation and other strategies for improving indoor air quality.
What is the impact of poor indoor air quality on productivity and cognitive function?
Poor indoor air quality can lead to decreased productivity, increased absenteeism, and impaired cognitive function.
