Customer reviews from sharkninja.com
Shark - Refurbished Excellent - NeverChange Air Purifier MAX, 5-Year Filter Life, 1400 sq. Ft - White
Average customer rating
4.4
(375 Reviews)
Rating breakdown 375 reviews
5 Stars
277
4 Stars
45
3 Stars
15
2 Stars
6
1 Star
32
85%of customers recommend this product.
(
176 out of
206)
Customer Reviews for Shark - Refurbished Excellent - NeverChange Air Purifier MAX, 5-Year Filter Life, 1400 sq. Ft - White
Customer Rating
5
Best gift to myself this year
on December 16, 2025
Posted by: Breathing easier 13
from Detroit
Gender:Female
I purchased during Black Friday 2025. I liked it so much I came back and bought one for my daughter home. She has 3 dogs and my grandson has allergies also. What a fantastic gift to give.
I would recommend this to a friend!
Written by a customer while visiting sharkninja.com
Customer Rating
3
Its OK for certain uses
on December 16, 2025
Posted by: John 1776
I got this a few weeks ago to help with issues we have with some smoke from our pellet stove on startup or if food gets over cooked to preclude the smoke alarms going off.. It seems to be ok but we still have a smell so it doesnt get all smells out of air.. Maybe it will work better with allergens or pet hair but for smoke smells of pretty much any type its not that great to us.We cant use automatic because it never speeds up enough to do any good. It always seems to show good air quality, so we have to use manual 95% of the time. So by using manual on higher speeds, we will have to replace the filter far sooner than claimed on videos or manuals. Be aware of that.
Response from sharkninja.comBy SharkNinja, December 17, 2025
Hi John,
Thank you for sharing your detailed experience with the unit. Your feedback is valuable and helps us understand how the product performs in different situations. We appreciate you pointing out how you’re using manual settings and the impact on filter life. This insight is helpful for others considering the product.
Kind Regards,
Shark Clean US.
Thank you for sharing your detailed experience with the unit. Your feedback is valuable and helps us understand how the product performs in different situations. We appreciate you pointing out how you’re using manual settings and the impact on filter life. This insight is helpful for others considering the product.
Kind Regards,
Shark Clean US.
Written by a customer while visiting sharkninja.com
Customer Rating
5
Great
on December 18, 2025
Posted by: Jb43
I like the purifier it’s a replacement very nice even the white color is nice
Written by a customer while visiting sharkninja.com
Customer Rating
1
Does not work!
on December 29, 2025
Posted by: Michelle76
from Michigan
Gender:Female
Purchased 2. I originally placed one upstairs and one downstairs living area. However they both were reading at 60%. So I placed both downstairs which is approximately 1200sqft ( which one purifier should work for) opposite ends of the house. One in kitchen one in living room. One is constantly at 70% and the other 64%. It has not reached 100% one time in 24 hours. On auto mode running at max.
I don’t know if I got defective ones or what is going on but this is a giant waste of money. I have one small dog. I cooked bacon last night around 7pm and I can still smell the lingering smell so this purifier did absolutely nothing. And my allergies are still off the charts even with both units running on the same floor. I have auto immune diseases and immune compromised and so is my young son. Having purifiers that work is essential for our well being. I was enticed with the never change filter with hopes of saving some money on filter replacements of our previous purifiers.
I don’t know if I got defective ones or what is going on but this is a giant waste of money. I have one small dog. I cooked bacon last night around 7pm and I can still smell the lingering smell so this purifier did absolutely nothing. And my allergies are still off the charts even with both units running on the same floor. I have auto immune diseases and immune compromised and so is my young son. Having purifiers that work is essential for our well being. I was enticed with the never change filter with hopes of saving some money on filter replacements of our previous purifiers.
No, I would not recommend this to a friend.
Response from sharkninja.comBy SharkNinja, December 31, 2025
Hi Michelle,
Thank you for sharing your experience. It’s clear how important reliable air purification is for your family’s health, and it’s concerning that the units haven’t performed as expected. We’d like the opportunity to review this and assist you further to ensure your purifiers are working properly. Please reach out to us at https://support.sharkninja.com/en-CA/contact-us, and our team will work with you to explore the best options.
Kind Regards,
Shark Clean US.
Thank you for sharing your experience. It’s clear how important reliable air purification is for your family’s health, and it’s concerning that the units haven’t performed as expected. We’d like the opportunity to review this and assist you further to ensure your purifiers are working properly. Please reach out to us at https://support.sharkninja.com/en-CA/contact-us, and our team will work with you to explore the best options.
Kind Regards,
Shark Clean US.
Written by a customer while visiting sharkninja.com
Customer Rating
1
Disappointed
on December 30, 2025
Posted by: Doom
Gender:Male
Filter only lasts 6 months. Filter looks ok but the machine no red red
No, I would not recommend this to a friend.
Response from sharkninja.comBy SharkNinja, January 2, 2026
Hi there,
We’re so sorry to hear about the issue with your filter and machine. That’s definitely disappointing. We truly appreciate you sharing this feedback, and we understand how important reliability is. Please reach out to us at https://support.sharkninja.com/en-CA/contact-us so we can assist you further and explore possible solutions.
Kind Regards,
Shark Clean US.
We’re so sorry to hear about the issue with your filter and machine. That’s definitely disappointing. We truly appreciate you sharing this feedback, and we understand how important reliability is. Please reach out to us at https://support.sharkninja.com/en-CA/contact-us so we can assist you further and explore possible solutions.
Kind Regards,
Shark Clean US.
Written by a customer while visiting sharkninja.com
Customer Rating
1
If you like public bathroom spray,this is for you!
on January 4, 2026
Posted by: MsPractical
Gender:Female
The smell of the odor neutralizer cartridge is disgusting. It literally smells like a public bathroom urinal cake. The fact that they don’t offer different scents is insane. I specifically purchased this for this feature so I’m returning it.
No, I would not recommend this to a friend.
Response from sharkninja.comBy SharkNinja, January 5, 2026
Hi there,
Thank you for taking the time to leave a review, and for bringing this to our attention.
We're sorry to hear that you're unhappy with the scent of the odor‑neutralizer cartridge. At this time, we don’t offer a variety of scent options, but your feedback is incredibly valuable in helping us understand our customers’ preferences.
We know this can be frustrating, and we truly appreciate you taking the time to share your experience with us. Please rest assured that we’ll pass your feedback along to the appropriate teams, as we’re committed to continually improving our products.
If you should need any assistance with your Shark, you can contact us at https://support.sharkninja.com/contact-us.
Kind regards,
Shark Clean NA.
Thank you for taking the time to leave a review, and for bringing this to our attention.
We're sorry to hear that you're unhappy with the scent of the odor‑neutralizer cartridge. At this time, we don’t offer a variety of scent options, but your feedback is incredibly valuable in helping us understand our customers’ preferences.
We know this can be frustrating, and we truly appreciate you taking the time to share your experience with us. Please rest assured that we’ll pass your feedback along to the appropriate teams, as we’re committed to continually improving our products.
If you should need any assistance with your Shark, you can contact us at https://support.sharkninja.com/contact-us.
Kind regards,
Shark Clean NA.
Written by a customer while visiting sharkninja.com
Customer Rating
5
Works great, especially with one GS German Sheppar
on January 10, 2026
Posted by: OHTX
from Texas
Gender:Male
Works great, especially with one GS German Sheppard 3-year-old. Easy setup and working great removes all odors in the entire living room and dining area as well! Recommend purchase!
Written by a customer while visiting sharkninja.com
Customer Rating
1
5 year filter, more like less than a year.
on January 17, 2026
Posted by: B. Kelley
from Tennessee
Gender:Female
Worked great for 6 months, filter is supposed to last 5 years and I cleaned the outside filters regularly and both are already not working because I need new filters for my big one and the small one I got for my bedroom.
No, I would not recommend this to a friend.
Response from sharkninja.comBy SharkNinja, January 19, 2026
Hi there,
Thank you for taking the time to leave a review.
We’re truly sorry to hear that you're experiencing issues with your Shark air purifier, and the filter needs replacing after only 6 months. We understand how frustrating this can be, and we appreciate you bringing it to our attention. Please know that we will share your feedback with the appropriate internal teams.
To help maximize your air purifier’s performance and extend filter life, Shark recommends keeping the unit in AUTO mode. Once 100% clean air is maintained for 10 minutes in AUTO mode, the purifier will automatically enter ECO mode to further optimize filter efficiency and longevity.
Additionally, to help extend the life of the HEPA filter, we recommend reorienting it every three months. Simply remove the HEPA filter, turn it upside down, and reinsert it so the side that was previously on top is now on the bottom. This helps evenly distribute captured particles throughout the filter and supports longer‑lasting performance.
In the meantime, we suggest reviewing our self‑help troubleshooting guide below for assistance with the issue you’re experiencing:
https://support.sharkninja.com/article/HP300-Series-Shark-NeverChange-Air-Purifier-MAX-Troubleshooting-Guide
If the issue persists after following the suggested steps, please refer to the instructions at the end of the guide to contact our support team.
Kind regards,
Shark Clean NA.
Thank you for taking the time to leave a review.
We’re truly sorry to hear that you're experiencing issues with your Shark air purifier, and the filter needs replacing after only 6 months. We understand how frustrating this can be, and we appreciate you bringing it to our attention. Please know that we will share your feedback with the appropriate internal teams.
To help maximize your air purifier’s performance and extend filter life, Shark recommends keeping the unit in AUTO mode. Once 100% clean air is maintained for 10 minutes in AUTO mode, the purifier will automatically enter ECO mode to further optimize filter efficiency and longevity.
Additionally, to help extend the life of the HEPA filter, we recommend reorienting it every three months. Simply remove the HEPA filter, turn it upside down, and reinsert it so the side that was previously on top is now on the bottom. This helps evenly distribute captured particles throughout the filter and supports longer‑lasting performance.
In the meantime, we suggest reviewing our self‑help troubleshooting guide below for assistance with the issue you’re experiencing:
https://support.sharkninja.com/article/HP300-Series-Shark-NeverChange-Air-Purifier-MAX-Troubleshooting-Guide
If the issue persists after following the suggested steps, please refer to the instructions at the end of the guide to contact our support team.
Kind regards,
Shark Clean NA.
Written by a customer while visiting sharkninja.com