Aliexpress
Click here… to search for Deerma CM1000 UV Anti-Dust Mite Vacuum Cleaner on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (81.77 USD): BGHOMEA13
(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): aff7off, bgchinafest, BGDRCMM, Email5, BGHOMEAPP, BGHCLE15, bgshOOp10, BGHome15%, BGHOMEAPP13
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Deerma CM1000 UV Anti-Dust Mite Vacuum Cleaner? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).