Material ABS, Size 100.6x 126.7mm, Weight 237g, Silicone, Voltage DC 5V, Humidifying Capacity 30 – 35mL/h, Power 2W, Intermittent Spray Time About 24H, Color Red, Stainless Steel, Capacity 480ML, PP, Continuous Spray Time About 10H, Green. Blue.
Just check coupons out (with price alert and history). You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($24.59): Terence
2. ($24.85): BG00c906
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): 5d0e89, VH1499, 502C6B, vipupgrade8, 1888CODE, TTxBG10, 2133CPO, BG1099HD, bgssaff9, AFfbG10, BGVH480ES, BGVDay10%off, BGHOMEG12, BGAFF10OFF, BGTT10, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGCuponation10, 13f142, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGJUSE681, BGZXJU681, BG10OFFAFF1, BANGGOODSD, 00c906, BGAlerabat1
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi VH 480ml USB Desktop Humidifier is here. The lowest price was: $10.67.
Price records source(s): Gearbest, 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)).