Price history, coupons and price alert are available on this page. What is the best price?
Rated voltage DC5V, Full power state: green light, Output method carbon fiber carbon brush, Charging status: red light, charging indicator Working status: blue light, Suggested application area 5-10㎡, Product size 3.8cm*8cm, Battery type 700mAh lithium battery, Working time 5-6H, Rated power 0.6W, Positive ion concentration 5 million+/cm³, Negative ion concentration 5 million+/cm³, Noise <20dB, Charging interface type Type-C, Product material ABS engineering plastics, Fan motor Micro silent DC motor, Model DG-PUR01
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood.
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/5cd
Old coupons (from the oldest to the newest): BGDGJHQVVDC, BGSS10%SW, BGNEWLKZZVV9, BGdragonBoat, BGDG160, BGDGASG, bGhOnEy10, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGNOSE160, BGHBHJ105, BGJATD160, BGAFF10OFF, BGCuponation10, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for DG-PUR01 Air Purifier Ion Air Purifier.
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)).