How much does this cost to the nearest dollar?

Personal Wearable Air Purifier Necklace, Negative-Ion, Rechargeable Ion Generator, Ionizer, Travel-Size, White, Portable, Small, No Filter, No Ventilator, with USB, Compact and Comfortable
This is a high-performance personal air purifier necklace. The personal air purifier creates negative oxygen atoms, also known as ions. Negative ions are invisible, scentless, and tasteless. The air around us contains many particles that make it hard to breathe. Negative ions attach to these particles to create a negative charge. The negative charge causes the particles to attract topositively charged surfaces such as the floor or furniture, removing them from the air. Please take into account this product does not work as a fan, you will not feel the air flow. Product does not have ventilator inside.

Price is $30.00

Price: $29.89