Nispira CPAP Disposable Replacement Filter Compatible with PARI Vios, Ultra II, Trek, and Trek S Item Package Quantity:6 Suggest replacing the HEPA filter

Suggest replacing the HEPA filter and the Carbon VOC filter every 6 months for best result

Simply remove the existing filter components and install the replacements into the compatible air purifier unit

LSMC3086SS

Pre filter helps extend HEPA filter life span by preventing hair

cooking etc

Nispira CPAP Disposable Replacement Filter Compatible with PARI Vios, Ultra II, Trek, and Trek S Item Package Quantity:6 Suggest replacing the HEPA filterReplacement Air Filters compatible with compressor Vios, Ultra II, Trek, and Trek S portable aerosol system It helps optimize performance of the compressor Replace air filter if it becomes discolored or wet. 14 (w) x 16 (H) mm. Each filter should last for up to 30 days