Oxygen generating principle: molecular sieve pressure swing adsorption, Brand name: JUREN, Input power: 100VA, Operating environment: 0℃ – 400℃, Oxygen concentration: ≥90% (V) (≤1L/min), Rated voltage: AC110V/220V, Product model: DZ-1BCW, Body size: 260X290X137mm, Noise: ≤45dB, Weight: about 6kg.
Check coupons or create price alert down below. Let’s see what best price is ATM.
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 price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($380.09): BG589b2e
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGGutscheine, BG00c906, ADMITADBLACK, BG8OFFCOUPON, TTBLACK5, JanBGCoupon8, BGSaleFeb8, BGSaleAD, BGMARCHSALE
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for JUREN DZ-1BCW 1L Oxygen Concentrator. The lowest price was: $184.29.
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)).