Omron Compressor Nebulizer System is developed for efficient management of asthma, chronic bronchitis, allergies and other respiratory disorders. 3 Years Extended Brand Warranty from the date of purchase. T and C For claiming warranty, original invoice is mandatory,Contact us 18004190492. Replacement of Items It is recommended to replace the nebulizer kit, mouth and nose pieces, mask and tube every year. The air filter should be replaced approximately every 60 days. Particularly, for mesh nebulizers, it is recommended to exchange the mesh cap after approximately 1 year.