100% brand new and high quality.
Can effectively filter PM2.5 ultra-fine particulate dust in the air.
Designed for sleep apnea.
Replace the filter every month, it will extend the service life of the CPAP filters.
Disposable filters, convenient and sanitation.
Color:As Picture Shows
Size: Approx.3.8 * 3.5cm / 1.4 * 1.3in
20 x CPAP Filters