CALLFO – Negative Oxygen Ion Protective Mask (HIGH QUALITY – 4pcs).
Bring fresh air, release negative oxygen ions, anti haze and dust, clean and dust-resistant.
PM2.5 Effective Filtering
- Using negative oxygen ion fabric, the material is soft and it is comfortable to wear.
- Releasing anions to purify the breath and make breath fresh and smooth.
- BFE (N95 standard) meltblown cloth is used as the inner core;
- Self-cleaning anion fabric can reduce odor and smoke;
- The product can be reused many times.
- Anion technology (ACIM) patent no: 201710732110.0
- Executive standard: GB2626-2006
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