Home / Uncategorized / HumidX F20 HumidX F20Login to view price A moisture-enhancing accessory for the F20 mask, keeping air humid and comfortable. SKU: 38015 Category: Uncategorized Related products Respironics Standard Filter (pack of 2) Login to view price Dreamstation Go Reusable Filter Login to view price Respironics Hypoallergenic Filters (pack of 6) Login to view price Air 10 Filter Cover – Gray Login to view price