Question 1: Can we clean or wash HEPA filters?
There may be a slight benefit of vacuuming HEPAs, but the benefit is small, and it can also damage the HEPA. Therefore, we do not recommend vacuuming. Washing HEPAs with water breaks down the HEPA material and so is not recommended.
Question 2: Can I use 890 ultrasonic cleaner to wash my bracelet?
Yes of course.
The 890 ultrasonic cleaner is of wide application. It is suitable for cleaning objects, such as jewelry, glasses, shaver, watch, etc., and ideal for dental clinics, office and household use.