CPAP Z1 Muffler improved noise by about 60%
Without the muffler I wasn't able to use my Z1 CPAP because of the air pressure noise. Now with the muffler I am able to use my Z1. It is still somewhat noisy but much better than without the muffler. I would definitely encourage purchasing a muffler when purchasing the Z1. I am very happy with my purchases.
By Sharon W.




