I have checked all old coupons and price is 116.99 USD for Xiaomi Mijia Desktop Air Purifier (in Banggood). Check coupons or create price alert down below. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood (116.99 USD)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. But wait a sec… Is it a good price? From what I can see this price is higher than average price (112.31 USD).
Link: Banggood product page
Price: 116.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Mijia Desktop Air Purifier? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).