FILTERIST 4-pack HEPA replacement filters for Dreame X50 Ultra, L40S Pro Ultra, X50 Master and L50 Pro Ultra robot vacuum cleaners. 4 HEPA filters per pack 99.9% filtration of dust, pollen and microparticles Rounded corners for safe handling Easy installation – same as original Recommended replacement: every 1-2 months

FILTERIST 3-pack HEPA replacement filters compatible with Dreame L10s Ultra, L10s Pro, S10, Z10 Pro and Xiaomi X20 robot vacuum cleaners. 3 HEPA filters per pack 99.99% filtration of dust, pollen and microparticles Easy installation – same as original Reusable – washable Recommended replacement: every 2-3 months