I got a bag with mini attachments that fits all vacuums, (that's what it says on the bag) I read some where NOT to used canned air as just pushes the gunk into the machine further. I hook it up on my vac and just go down the line and do all 9 machines at one time, then while it is out and ready I do the floors. I use a one inch paint brush for cleaning each time I change the bobbin for lint and threads.