1.Failures caused by: 1) Use of a Teendow product which is not in accordance with the “Usage Restrictions” in the User Manual. 2) Use of a Teendow product for cleaning white ashes, sand, dust and other non-household garbage. 3) Use of a Teendow product for decoration, ornament or cleaning in a commercial environment. 4) Use of a Teendow product for cleaning in an environment with special adsorption chemicals, metal or other microparticles. 5) Use of a Teendow product in an environment with corrosive objects. 6) Accessories and other consumable parts, such as filters, brushes, unless the consumable part has been damaged due to a defect in materials or workmanship in a non-consumable part of the Product(s). 7) Normal wear and tear and decorative parts damage. 8)Products purchased from unauthorized dealers or sellers. 9)Damage caused by improper use, maintenance, and storage. 10)Products and accessories found to be defective after the warranty period has expired. 11) Products damaged due to improper dismantling by the customer or unauthorized third parties. 12)Products damaged due to force majeure, including without limitation, acts of God, strikes, riots, labor disturbances, material shortages, nonperformance by subcontractors or suppliers, abnormal manufacturing conditions or costs, delays or failures of carriers or communications, fire, flood, storms, ice, snow, accident, war, explosion, accidents, epidemics, governmental orders or regulations or inability to secure any necessary governmental or other permits, court orders, or any other reason beyond the reasonable control of us. 13)Product failure or damage subjected to misuse or abuse, whether by accident or man-made causes (including but not limited to operation errors, liquid inlet, improper swap, scratch, bump during transportation or carrying, inappropriate voltage, etc). 14)After the confirmation of warranty repair service, corresponding goods are not sent within fourteen (14) calendar days. 2. The product you purchased is a prototype, the model or SN of which does not follow the SN coding rule for a brand new complete machine.