4L large capacity tank, 34.3dB, Voltage: 220V.
Just check coupons out (with price alert and history). 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. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGEAHUM, 427168, 533ab2, 25433a, 1be25c, 715556, 314e90, BG1266720, PICODICOM, BGSMIA06, BGSMAI06, BGAPPLIANCE, BGSMAI08, picodicom, BGAPPLIANCE1, BGSMAHG, BGPOWIETRZEPL, BGPOWIETRZEPL0, BGSEAH, BGPOWIETRZE4LPL, BGSEA4, BGPL11POWIE, BGPL11POWIECN, BG4LRA, BGXMAHU, BGXSEA, BGSTVR, BGXSOM, BGHUMXM, BGSAGV, BGXAMH, BGXSHUM, BGHOMEAPP, BGTT10, bGhOnEy10, BGMIHUCZ, BGXMHUMCZ, BGAHMCZ, BGHUMCZ, BGSEAHCZ, 7bcdf9, BGUMH7, BGSS10%SW, BGSAHM7, BGHUMALY, BGXMHUM8, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHUMAH, BGHOMEA13, BGCJXJSQ02ZM, BG02ZMCZ, BGSTDHOBH, BGMTDGUSCZ, BGCuponation10, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, Cuponation9, BG25PCSmi, BGAHPU13, BgGoodie9, BG8ReviTrage, BGeaf456, BG1018a, TTBLACK5, BG457ef0, BG035af3, BG589b2e, JanBGCoupon8, BGSaleFeb8, BGSaleAD
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Smartmi Pure Evaporative Air Humidifier [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Smartmi Pure Evaporative Air Humidifier. The lowest price was: $100.99.
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)).