*99.98% protection against E. coli and 99.99% protection against S. aureus data comes from CHEARI (Beijing) Certification & Testing Co., Ltd. The anti-bacterial coating used in this product has a protection rate higher than 99.98% against E. coli and higher than 99.99% against S. aureus. Report no.: WCk-24-50020.
*The anti-bacterial coating grade 0 anti-mould rating data comes from CAS Testing Technical Services (Guangzhou) Co., Ltd. Report no.: JKK19110058.
*99.97% elimination of 0.3μm particles: According to the China Testing & Inspection Institute for Household Electric Appliances inspection report (No. WCv-21-40115), the filter material used for this product achieved a filtration efficiency of 99.97% for 0.3μm particles.