[Compatible Models]This for HPro Nail Dust Collector Replacement Filter is only compatible with for Nail Dust Collectors, for Model for HPro/ SProR. Not fit for other models. Please check your model before buying. [99% High Filtration]Premium H12 True HEPA Nail Dust Filter can collect 99% of fingernails, nail dust, fly ash and other small particles, effectively improving the air in your environment. [Hepa Reusable Filter]Our for HPro nail dust filters are designed to be reusable. We recommend that you replace your filter every 3-4 months to that it continues to effectively collect nail dust for optimal performance. [Easy to Clean]Please use hair dryer or soft makeup brush to clean the nail dust on the filter, which keep the filter clean and running efficiently. Keep your air environment fresher and healthier. [Cost-effective]4 Pack for HPro/ SProR Nail Dust Collector Filters are included in the package. We recommend that you replace the filter every 3-4 months for optimal performance. (Note: Under normal conditions and environments) Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Non-woven fabrics Size:Diameter: about 16cm Package Contents: 4 x Nail Dust Collector Replacement Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.