Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe .
Link: Banggood product page
Coupon (65.99 USD): BG61f016
Coupon (65.99 USD): BG73b5d9
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGSHUM1S, BG1SWST, BGRMUN, BGHOMEAPP13, BG1SAHUM, BGHOMEA13, BG1S11, BGST1SCZ, BG1SAHUMCZ, BG05ZM1S, 7bcdf9, BGCJXJSQ05ZM, BGSTHUM1S, BGCuponation10, BG1SHUMER, BG05ZMAH, BGHU0439, BG10OFFAFF, BGwhielabel, BG500999, BGbe747b, BG3f69ac, BG10OFFAFF1, BGc1e59a, BGbcd6d3, 6GSGIT, BGcf7142, BGBFD13
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Smartmi UV Sterilization Air Humidifier 1S 3.5L [EU].
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).