Aliexpress
Click here… to search for Happy Life Bladeless Cooling Fan on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (36.77 USD): BGJUNEGSG9
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): Hardware, 06fbc1, BGamir01, BGalibuy3in1, BGfan32, BGfan30, TTxBG10, BGfan28, BG2646, BGfan20, BGPLMINIFAN, BG3088, BG3in1fan, BG6544, BG2099, BG16527, BGTechWiser10, BGDH16, BG2020NS, BG7668, BG4860, bGhOnEy10, BGXMFD518, BGM544, BGY544, BG10914, BG11518, BgcLuBofErtA10, BGFANDE24, BGAFF10OFF, BG10OFFAFF, BGwhielabel, 13f142, BG10OFFAFF1, BGb6776d, BANGGOODSD
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Happy Life Bladeless Cooling Fan is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).