You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Model: DEM-F268S, Working Time: 12 Hours Timing, Water Capacity: 5L, Amount of Fog: 300ml/h, Material: HIPS, Cleaner Types: Humidifier, Noise: ≤ 30dB, Operation Mode: Ultrasonic, Frequency: 50Hz, Voltage: 220V, Power: 25W
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Humidifier Ag+Silver Ion Water Purifier Sterilization Antibacterial for xiaomi deerma Humidifier F600 F628 Parts Accessories | $13.10 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
1. ($56.20): 00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGF628S, BGF628SPL, BGDF628S, BGF628SDR, BGF628SH, bGpAnDacHeCk, BGAHOFF, BGMF628S, BG628S, BGHOMEAPP, BGDE628S, BGDCCJP, BGF628SYT, BGDMF28S, bGhOnEy10, BGF628SCZ, BGDT628S, BGD628S, BGSS10%SW, BGDERF28S, BGDHUMCZ, BGF628SCZ8, BGDF628SCZ8, BGDF628SCZ, BGDEF628S, BGDEMHV, BG9D628S, BGCZFRSE502, BGF628SES, BGDMF628S, BGHOMEA13, BGF628S11, BGCDC016, BGCZF628S, BGCZESF628S, 7d18f7, BGF628SDE, 13f142, BGF628SCZES, BG628SFER, BGCuponation10, BG10OFFAFF, BGwhielabel, BG10OFFAFF1
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Deerma F628S UV Humidifier 5L [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Deerma F628S UV Humidifier 5L.
Price records source(s): Banggood
Click on image to enlarge. 
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)).