Got to know the product when the team (Purity) came to door knock. Skeptical at first but convinced when demonstration was carried out right in front of me. Never easy to clinch my deal but the team is very professional and they simply have answers to all my queries. I am very satisfied with their after sale-service. The replacement of the filter date was scheduled by the team and they reminded me instead of me going after them. The team even assisted me when I told them that I am moving to a new place. Fuss-free for me and glad that I made the right decision years ago. Thumb up to the team and will continue to stay with Purity. Purity will be brand I will recommend if anyone ask for my recommendation.