This is the replacement disposable filter used in all the 3B Medical CPAP and BiPAP devices.
To block even the smallest of particles, the 3-pack of Disposable Filters for RESmart Machines is made of polypropelene and acrylic fibers.
DIMENSIONS: 3" L by 1.5" W
Designed for the RESmart Machines, the filter is disposable and should be changed every month.
RETURN ON WARRANTY ISSUES ONLY