Basically copy coupon, view price history or create e-mail price alert. What is best price?
Function Portable & Mini, ZW2.5D8Y-02, Rated Power 2.5W, Size 141cmx 62cmx 52mm, ② Ion of Ozone, Formaldehyde+Ozone=Co2+H2O+Oxygen, UVC+Deep efficient adsorption, Battery 700mAh (Bulit-in) & Micro USB Charging, Color Black / White, 99.9& High Sterilization Rate & 30 Mins Effcient Sterilization, 360° No dead corner coverage, Model ZW2.5D8Y-01, Voltage DC 5V, Sterilization Method ① UV
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database… There is one great coupon!
Link: Banggood product page
1. ($22.49): BGAFF10OFF
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BFGUIER, BGHome15%, BGHOMEA15%, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi Xiaoda USB UVC Ozone Sterilization Lamp ($-3)
Price history and price alert
There is only one database record (it was for $21.99), so you can’t see price history chart.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).