If your Fisher & Paykel Eson CPAP Mask is a little too loud for your tastes, consider ordering this 10-pack of Bias Flow Diffusers from Resp Shop. Simply insert a diffuser into the slot between the diffuser cover and the elbow on any Eson CPAP mask. When in place, the diffuser will decrease the amount of sound produced by the mask. Since 10 are included, you can replace your diffuser as necessary to get the best results.
This set includes 10 bias flow diffusers along with one diffuser cover. It is compatible with any of the Eson CPAP masks produced by Fisher & Paykel. These diffusers are optional accessories; they are not required to use your Eson mask.