A respiratory exerciser acts as a tool that will expand your lungs by helping you to breathe more deeply and fully. This device is primarily used for breathing exercises post, Surgery or infection to make your lungs stronger. You can even use this to test whether the lungs are functioning properly or not. Get best price of romsons respirometer at 160/, Product details breathing exerciser. Innovative system to exercise respiration through inspiration. Specially designed with 3 stage chambers to provide for efficient exercise to patient on a step up basis. Device comprises of base plate with central part containing volume designated three chambers with colored spheres. Encourages deep and prolonged inspiration. Three spheres rise proportionately to the inspiration exerted by the user. Can be, Innovative design dismantled into parts intended for sanitation and disinfection. Box of 1/ master box of 50. Place the decice at mouth level, Exhale normally before inhaling inhale thoroughly until lifting the three balls. Hold inspiration as long as possible. Remove the mouthpiece and exhale. Repeat the process. Refer package leaflet for cleaning instructions. Unit consists of transparent main body comprising of three volume chambers base plate spheres yellow and, Of red blue colour connecting tube patented mouth piece with in, Built filter