1. DreamStation Ultrafine Filter (Disposable) Fine air filters that have been used cannot be reused. It is recommended to change it every 30 - 45 days (or less, depending on the case. For example, a house with a lot of dust may need to be changed as often as every 2 weeks, depending on the environment in which the machine is used). It is recommended to check the filter regularly. The user can take it out and view it at any time.
2. DreamStation Pollen Filter (Reusable) Reusable air filter Can be reused By washing it through water and using a soft brush to dry it (not in the sun) every week and changing the coarse filter every 6 months.
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