Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Xiaomi Youpin Deerma DEM-CS10M Mini Dehumidifier | 32.29 USD | Paste “05CD03 or CDPU03 or FRCD03 or CDES03 or CDEW03 or AE3ZNAFEU or USAFF3” (may not work) |
 |
Xiaomi Youpin Deerma DEM-CS10M Mini Dehumidifier | 36.89 USD | Paste “05CD03 or CDPU03 or FRCD03 or CDES03 or CDEW03 or AE3ZNAFEU or USAFF3” (may not work) |
 |
Xiaomi Deerma 350mL Smart Water Bottle | 43.04 USD | Paste “05CD03 or CDPU03 or FRCD03 or CDES03 or CDEW03 or AE3ZNAFEU or USAFF3” (may not work) |
More on Aliexpress… Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (79.19 USD): BG10OFFAFF
Coupon (79.19 USD): BGwhielabel
Coupon (86.99 USD): 13f142
(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): 502C6B, PICODICOM, 919c60, BGDEER05, aff7off, bgssaff9, BGaDmITAd, bgchinafest, BGBFAFF2019, BGCITYADS2019, BGST300S, Email5, 2020CNY, BGHOMEAPP, bGhOnEy10, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEA13, 7d18f7
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi DEERMA DEM-ST300S 4L Humidifier? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).