The filter should be replaced every 1-2 months, otherwise dust and dirt may accumulate, causing the motor to be noisy, making the machine work harder and reducing the efficiency of delivering clean air.
Beware of counterfeit filters
It's best to purchase genuine air filters from authorized resellers, as counterfeit filters that don't meet standards may have low dust filtration efficiency and pose a risk of residue or unsafe materials, which can negatively impact the CPAP machine and the user's health, particularly the respiratory system.
