Mini Hanging Neck Negative Ion Air Purifier Portable Pm2.5 Formaldehyde Removal Necklace black
One cubic meter can release about 300w of negative ions, remove air dust, and breathe freely.
Double-head carbon brushes release negative ions, the negative ion generator has no filter, 0 consumables are more environmentally friendly, and the air is purified for a long time.
Lightweight and portable, you can carry it anywhere.
Eliminate formaldehyde, etc., eliminate smoke.