High efficiency one way valve for easy inhalation and exhalationUniversal Backpiece, can be used with all commonly prescribed Metered Dose InhalersAnti-static spacer improves the delivery of MDI by inhibiting the adherence of drug to spacer wallSoft and flexible silicone mask provides comfortable touch and reliable sealPortable design & easy holdingEasy disassembled and reassembled for cleaningMouthpiece cap can protect the mouthpiece from dirt and debris when the device is not in useThis product contains no latex and is BPA free
https://www.rossmax.com/lv/produkti/therapy/peak-flow-meters-aero-spacers/as175-aero-spacer-valved-holding-chamber.html