Hi Asmael, Thank you for your praise. Customer satisfaction is our first priority. We look forward to our next cooperation.

Dear Ocias Thank you so much for your positive feedback on our machine's performance! More importantly, we greatly appreciate you taking the time to point out the lack of an instruction manual. We sincerely apologize for the inconvenience caused. You are absolutely right – a detailed manual with dos and don'ts is essential, especially for first-time users of ozone machines. To assist you immediately, we have sent you a digital copy of the comprehensive user manual (in multiple languages) and a quick-start guide via direct message/email. It includes detailed operating procedures, important safety precautions, maintenance tips, and FAQs. Thank you again for helping us improve! If you have any further questions, our support team is always here for you. We wish you a great experience with our ozone generator! Sincerely, The FEILI Team