Window air conditioning units normally have two operating modes
A) Heating and cooling B) Fan only and cooling
C) HEPA and non-HEPA D) High efficiency and ultra high efficiency
Question 2
The primary advantages of room air conditioners include
A) relatively low in cost and easy to install
B) high efficiency and quiet operation
C) can be used with ductwork to distribute air to several rooms
D) can be used for improving indoor air quality using HEPA filters