Hacenoroxygen Reviews 

The Hacenor oxygen concentrator I purchased provided very low oxygen purity (30%) -- inadequate to treat most health conditions, a fact that was not included in the product description. My overnight pulse oximetry test using the unit showed a dangerous total of 6 hours under 88% oxygen saturation! The company repeatedly refused to honor their warranty policy, and when it finally did, only refunded $113 of my $269 dollar expense. I previously had a Hacenor product fail within several months, and the vendor I bought of from (also Chinese) ignored my repeated emails asking them to honor their warranty policy. Hacenor is an unscrupulous, deceptive company that makes defective, useless products and rips off customers.

I ordered the small portable 1.5L oxygen machine, the machine was poorly made and it was loud , so loud I could not wear it out in public! The device was not quiet at all as described in the advertisement. The device did not blow out any oxygen, the device felt like a toy . It was hard getting a refund and the customer service was poor!

This concentrator was so noisy it was impossible to carry on a conversation with the person wearing it while it was running. Also could not fall asleep with it on because of the noise. Not to mention going out in public with this thing chattering away on your side. Restocking fees for refund are more than half the price of the original purchase, and that's where this company makes their profit.

I purchased both the FY001 and the C-YS10-B. Both machines do not produce what the specs claim. I had the C-YS10-B checked by a Medical supply Tech and it put .6 Lpm at 22% purity. It has one month warranty remaining but not honored. They wanted a video, but I do not have one. I almost bought a SK-9000 before reading other reviews. I'm so glad I didn't. I also bought a 9Lpm home unit. Had to beg for delivery. Finally got it.

This company sells fake oxygen concentrators. I became skeptical after my tracking number originally did not appear on the shipper website and clicking on email links provided led me to a non-existent tracking website. Quick research uncovered many complaints of low levels and refusal by the company to refund purchases. I immediately contacted my credit card company to dispute the charges. I contacted the company via email regarding why my tracking did not show and the low levels of oxygen these units produce. They advised me the tracking number to FedEx was indeed good and it showed up the following day? I informed them I would be immediately returning this item and that I had disputed the charges. After numerous emails they finally admitted they sell non-medical concentrators, and it was my fault for not reading all specifications before ordering. (oxygen specifications did not exist on the unit I ordered until I questioned it) I looked back and specifications were updated to indicate 30 percent oxygen. By all definitions I found, "Oxygen Concentrators" are a medical device and must provide between 85 and 95 percent oxygen levels. They also state in their refund policies that returns are at the customer cost and that original shipping charges from $30 to $50 will be debited from any refunds they may provide. All reviews I have seen indicate nothing is ever refunded nor do they respond to any BBB complaints. I have received this phony product and will be sending it back today. Be advised, the return address is the same but a different company name. I will include the Hacnro... name on my shipping label and order number. I will be out shipping charges, but I have been in contact with my Credit Card Company to advise them I do not authorize any further charges by this fine company. Buyer beware!

Terrible product. Doesn't work. Terrible user documentation. Very disappointed and this is getting returned the same day I received it. Don't waste your money.

I purchased HCN-7B. Website states 90% purity at 1L. What it does not tell you that it is 60% at 6L continuous flow. Which means it is both worthless and misleading advertising. I paid $709 for one with two batteries. I paid $78 shipping return plus they deducted @35.45 credit card fee, $50 shipping fee and $150 product value impairment and restocking fee. My refund was $473.55. So this cost me a total of $313.45.

WARNING TO CONSUMERS & AIR TRAVELERS:
This company (HACENOR) is engaging in intentional fraudulent advertising regarding their Portable Oxygen Concentrator (Model FYY-01).

1. FAA Compliance Fraud: Their advertisements explicitly claim the product is authorized for aircraft use per 14CFR Part 121 Section 121.574. However, after purchasing, I received a written admission from their customer service that their "FAA certification is still in the application process." They are selling non-compliant medical devices to unsuspecting travelers, putting careers and safety at risk.

2. Hazardous Documentation: The user manual provided is filled with incoherent gibberish (e.g., "machine contract with pesannoli") in critical Safety and Troubleshooting sections. For a medical device, this lack of readable instruction is extremely dangerous.

3. Refusal to Refund: Despite clear evidence of misrepresentation and a history of shipment failures due to missing documentation, the seller has ignored my refund requests and stopped responding to emails.

I have filed a formal complaint with the BBB and am reporting this to the FDA. Do not trust this merchant with your money or your health.

They sell used machines which do not work. We were shipped two machines both of which do not work and they are insisting I pay return shipping for the machines.
Do not buy from this company. Scammers and cheats.

I am a disabled Senior did a return per there instructions and asked several times about my Refund
was told they could not find the unit in there warehouse .
I sent the tracking info says what day and time also handed to someone.
after that no more replies .
I am out $559.00 and no machine either !
STAY AWAY FROM THIS COMPANY THE ARE THIEFS.

First of all this company has the worst customer service people working only through emails there is no us phone number this company has a parent company called Sun Ward Logistics the products that they're selling are not of top grade the machine I received after trying it two days the oxygen completely goes out after 15 minutes with the machine completely charged it is garbage stay away from this company do not deal with them they are a bunch of scammers and I will be reporting them to the Better Business Bureau etc etc

So ordered from this company, think found thru Amazon but not possible to buy there.
So ordered and realized this machine wouldnot work for me.
So I wanted to return and did.
Their return policy is archaic and unjust.
As the client has to pay a $60 restocking fee and the merchant cost of the whole experience and pay for return shipping.
I paid $289 and my refund was $ 192.
At this point, I would never order from this company!
And omg if you forget to send them the tracking number, they don't contact you or even acknowledge your return!
Would suggest they are not really a customer service company but the people who do the processing are very nice...too bad the company policy is not.

I purchased a HACENOR portable oxygen concentrator for my severely ill father, expecting a basic level of professionalism and care. Unfortunately, that was not my experience.

Shortly after delivery, my father was admitted into long-term care, and the device was no longer needed. The unit was never opened or used. I contacted the company immediately, followed every return instruction they provided, and returned the item to their designated warehouse.

The return was shipped via UPS and confirmed delivered and signed for at their warehouse on November 19, 2025. Despite this, more than a month passed with no refund and no confirmation.

When I followed up and provided proof of delivery, the response I received was hostile and unprofessional, including denying receipt instead of resolving the issue. This was especially upsetting given the medical context and the fact that I had complied fully with their process.

I did not expect this level of resistance, delay, or lack of empathy from a company selling medical equipment. Based on my experience, I cannot recommend this company to anyone, especially families dealing with serious health situations.

I received the HACENOR 3L/MIN Oxygen Concentrator w/ 2 Batteries - HC-30M in 2wks. Defective on arrival, i was asked to "video" and upload, which I did. Then it was confirmed defective and I was refused a return label and told to return USPS for "tracking number" purpose. It cost me $25.80 to mail back to company from Hanson, MA to California. This was all done by "email" as I could never get ahold of a human by phone. I had to alert my Discover card and dispute! I am still awaiting a REFUND of over $300 back to my Discover card to date!
UPDATE: I tracked return and it was received 12/15/25. I sent an email literally begging for my refund and was told they have a BIG warehouse and my return has yet to be documented so it was still not showing in there system as returned! WHAT?! Like really, what?! Today is 12/17/25, still waiting. Turns out DISCOVER allows them 30 days from my documented dispute with them and I had to literally upload all correspondence to Discover. Cheese n Crackers!! I'm really pissed!

Dishonest company from China with no respect for us laws. Not fda approved, not even what they claim. The return process isn’t even legal and they are rude. Stay away

Very unhappy
We bought a mini portable that stopped giving air at 4 months. There is a one-year warranty - supposedly. Customer support finally replied after I messaged on Facebook. I had to ship the unit back and PAY for the shipping. They will 'inspect' it and then I don't know what. I have asked for a refund because I bought a SECOND unit as my mother is o2 dependent. This unit will not power on at ALL. Fully charged but the machine will not turn on to pump air. I've written again and waiting for a response. They ship out of California, but their customer support number looks like it's in China. Great - have asked for a US number with no reply.

Product is useless and does not provide efficient oxygen.

Hacenor is a scam. They do not honor 30 day money back guarantee, and they do NOT honor the 1 year warranty. If you contact customer service, they are beyond rude, and pretty much piss in your face knowing there is no recourse. JUST ANOTHER SCAM FROM CHINESE COMPANIES.

I would rate lower but it's not an option.Good evening, I received this item today and it does not work. I immediately started trying to get someone to help me but nothing still yet it's been over 5 hours. Also I've reached out to this company in email , website chat, Whatsapp and called them to no avail. At this point all I want to do is get my money back from this company and return the defective item, since they can't give me any help after all this time. Enough is enough! I haven't heard anything from them at all and it's been at least 5 hours since I began trying.

Still waiting for a response to an email sent 3 days ago. Unit POC-04 was purchased on 10/8/24 and delivered on 10/14/24. Unit only has 6 hours on it. Went to use it on 5/30/25, and unit was blowing air out from the litre meter (where the little ball determines what litre unit is set at). Plastic that connects the air tubes inside the unit to the litre meter were broken, and litre meter fell out. No luck getting a hold of customer support. COMPLETELY DISSATISFIED!