Wish I could help you further, but I live in New Zealand so do not know how the health system and insurance works in the US.
There is also an International Association of Laryngectomees - IAL. If you google them they should come up. I think that you are able to contact them and they will provide assistance.
Using the HME filter is a very good idea for both filtering the air you breathe and helping to moisturise..
Really hope your quality of life will improve - I'm sure of it.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!