The service and support service is very low. They sell used inhalers, cheat, and try to sell a product that doesn't work. No customer orientation. We barely got the money back for the used inhaler they sold us, and we sold the non-working device twice. They also tried to deceive, allegedly another warranty card was planted, and this new device. The child is sick, and they made a refund to us only after 2 days, they could not give us any money or a normal inhaler. I don't recommend it.