Professional mask with one-way valve L

The professional mask with one-way valve is used for apitherapy and only in conjunction with the professional hose. Standard mask size L (grey) Can also be used with 1.20 m ribbed tube and in conjunction with the Medikoel Me120 ultrasonic inhaler The colour of the mask may differ from the one shown in the picture. The mask is a spare part, not a medical device.