Aerochamber Inhaler, Inhalation Aid, Asthma, Aerochamber Aerochamber, without mask (5 years and older) AS175 Mouthpiece & Cap [ROSSMAX] With a check valve, you can inhale efficiently. You can check if you are inhaling properly with a highly visible structure, confirming that the inhalation bubble moves from the outside. The main body is anti-static, so the adhesion of medication due to static electricity is less likely to occur, reducing the loss of medication. The back piece is flexible and compatible with all MDI preparations. Specifications Model number: AS175 Mouthpiece & Cap Specifications: Without mask Target age: 5 years and older Material: Body/PETG, Valve/Silicone, Mouthpiece cap/Back piece/TPR Body capacity: 175mL Latex-free & BPA-free Package size: 80 x 75 x 170 mm, 90 g. Thank you for viewing.