carole
Excellent customer service' speedy…
Excellent customer service' speedy response and great communication

At Cleriva, we create science-backed solutions that unlock the power of better breathing for deep sleep, laser focus, and lasting energy. Our mission is to elevate your quality of life by making better health effortless so you can feel your best every day.
Cleriva (cleriva.com) has 338 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
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338 approved reviews, newest moderated first
carole
Excellent customer service' speedy response and great communication
Neil R.
I have been using my Novaflow for 4 days, 3 times a day. My post nasal drip has gone, and I am no longer snoring, according to my wife, Tracey. I highly recommend that people with any sinus issues should give this device a try. It is very easy to use and highly effective.
Steve B.
I’ve been using the Cleriva NovaFlow red light device for the past 10 days, and I’m genuinely impressed with the results so far. I’ve suffered from rhinitis for as long as I can remember, along with persistent hayfever that typically lasts from March through to late October. Nasal congestion has always been a daily struggle for me. However, since using the NovaFlow, I’ve noticed a significant improvement—my nasal passages feel clear, and I can breathe freely through my nose, which is something I haven’t experienced in years. In addition to the product itself, I’ve also been very pleased with the customer support. I contacted Cleriva regarding the Ultraviolet Sanitizer unit I purchased alongside the NovaFlow, and both Maddy and Coney responded quickly. They were friendly, helpful, and thorough in answering my questions—truly a breath of fresh air. So far, I’m extremely happy with both the product and the service.
Eleonora G.
It is all about the customer service! Coney has been wonderful. I have to admit I am not 100% sure that the product is helping yet (I think it is beneficial) but knowing that the company stands behind their product and that there are agents as kind and thorough as Coney makes me feel very secure to continue trying this new product.
Victoria M.
Update: So after all the shipping and cables had been sorted I did go ahead and use it. Its a good product, gets results, the customer service IS good, but the shipping delays are not (I would imagine they will be working on that). Its made a real difference. Instead of 3 sprays and a tablet, I am now down to just the tablet. Despite the reviews I did (stupidly) go ahead and order, as I suffer so badly with Rhinitis, and allergies I would do anything to help! At the two week point the tracking hadn't moved for over a week and I decided the refund was best, which was processed. After 19 days 17th March it did actually arrive. I had been told that I couldn't return it regardless, so today I got around to opening it. I had actually bought the full kit which included extra prong covers and the steriliser. Both are USB charged. The charger for the actual device doesn't even fit the device, it's far too large - so completely pointless and no I haven't got it mixed up with the steriliser, as the cables are the same just one is shorter! The customer service was good that and I'd rate that a 5! Incredibly disappointing!
Response from ClerivaMar 29, 2026
Hi Victoria, I’m really sorry for the frustration this has caused. It sounds like there was a manufacturing error with the charger cable, and I sincerely apologize for that. That’s definitely not the experience we want you to have. I can see that a full refund was already processed for you on March 11, so while we’re unable to process anything further on that order, we’d still really like to help by sending you the correct charger cable for your NovaFlow. If that sounds okay to you, please kindly email us at [email protected], and we’ll take care of that for you right away. We truly appreciate your patience, and I’m very sorry again for the inconvenience. I’m here to help and will make sure this is properly addressed for you!
Kathy B.
The Novaflow device is great! I've been using this for a few weeks now and it works! Every time I use it, my sinuses will open up and drain. If I use it prior to irrigating, the irrigation seems to clear out more than it normally did prior to using the device. I'm sold on it!!!
Max De P.
A game-changer for hay fever! This device is fast-acting, non-invasive, and incredibly effective. My symptoms improved drastically after only a few sessions. It’s a must-have for anyone seeking a natural way to manage allergies and breathe easier.
Bryan K.
The nose piece has helped me tremendously. Prior to using it I always had something going on. In addition, i have eustachian tube dysfunction. Very unpleasant condition. This device has really calmed my nose down and gotten me relief, then on a road trip (I always travel it) somewhere the cord came up missing, so no more red light for me. I emailed the company and ask how I could get another cord. I would of gladly paid for it. The manager offered to send me a free one. I was shocked at how quick they responded and took care of the problem. Great product...great customer service, thank you.