The best replacement for hfa is cfc.

The best alternatives to hfa are rated as following:
★★★★★  cfc
★★★★  mdi
★★  cfc inhalers
★★  aspergers
★★  hmc
★★  diskus
★  advair diskus
★  dpi
★  asperger's
★  albuterol
★  proair hfa
★  proventil
★  proair
★  xopenex hfa
★  flovent
  advair
  proventil hfa
  advair hfa
  ventolin hfa
  ventolin
  xopenex
  asperger

Your alternative for hfa is not listed? Suggest!
Speaking about hfa, one probably shouldn't forget about spacer.

Other search terms related to hfa and their ratings are:
★★★★★ spacer
★★ inhalers
You have in mind a companion for hfa and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hfa in all years. Click on graph for more.
hfa
cfc
mdi