
Suction Filter Water Blocking Gas Filter Sputum Aspirator Negative Pressure Drainage. Breathable Water-Blocking Filter: Replaces PTFE membrane with 0.2-1.0um pore size for effective water blocking and breathability. 3-Year Quality Guarantee: Comprehensive 3-year quality assurance period for all purchased units. CE and ISO 13485 Certified: Products passed CE certification and ISO 13485 quality system certification. Custom Logo on Packaging: Add customer company information logo on packaging upon request. Custom Mold Production: Design product drawings and customize product mold production available. Ethylene Oxide Sterilized: All units undergo Ethylene Oxide sterilization process. Suitable for Children and Adults: Designed for use across different age groups including children and adults. 100% Finished Product Inspection: Strict 100% visual inspection for all finished products before delivery.