I have had my compressor Pari Vios Green become weak a couple of times but both times Pari replaced it for free only asking me to send back the old one. They said since I use it twice a day and for as long as 25 minutes each time I might try the Pari ProNeb Max instead. So I now use each of them once a day so they will not wear out so fast! Replacing the filters is important too!