SterraCare 2-Year Additional Warranty For Sterra Mars™ Air Purifier from $35.00 $70.00 /per or 4x $8.75 w/ or 3x $11.66 w/ SterraCare adds two years additional warranty to your new Sterra Mars Air Purifier. Current Promo: 2 years additional warranty for the price of 1. Priority access to Sterra Customer Care Sterra-certified repairs using genuine parts Motor, leakages, parts, touch panels covered Produc variants Default Title NEW LAUNCH SALE: Sale ending in Add to Cart Couldn't load pickup availability Refresh