While very effective at removing small contaminants, HEPA filters ...

[jilianpiloj]

While very effective at removing small contaminants, HEPA filters are not used in residential applications because of what reason?
 
  A) Extremely high cost B) Low efficiency
  C) Not available in home centers D) They cause a high pressure drop in the duct.

Question 2

In what lengths are line sets normally available for residential split systems?
 
  A) 50 to 150 ft B) 25 to 100 ft C) 15 to 50 ft D) 5 to 25 ft

[mmj22343]

Answer to Question 1

D

Answer to Question 2

C

[jilianpiloj]

Thanks for the timely response, appreciate it

[AmberC1996]

YES! Correct, THANKS for helping me on my review