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
(414 Reviews)
Rating breakdown 414 reviews
5 Stars
304
4 Stars
49
3 Stars
16
2 Stars
8
1 Star
37
86%of customers recommend this product.
(
185 out of
216)
Customer Reviews for Shark - Refurbished Excellent - NeverChange Air Purifier MAX, 5-Year Filter Life, 1400 sq. Ft - White
Customer Rating
1
on January 29, 2026
Posted by: Freeman56
from Mandeville, LA
Gender:Male
Was really hoping this would solve our problems so we bought 2 units. Been running for about 3 weeks now and no change in air quality. Have noticed fine dust building up on the air purifier. Only noticed the air quality dropped when I burned pecans on the stove. Other than that it’s stays on 100% even with 2 bigs dogs in the house.
No, I would not recommend this to a friend.
Response from sharkninja.comBy SharkNinja, January 29, 2026
Hi Freeman,
Thank you for taking the time to leave your feedback.
We’re sorry to hear that the air purifiers have not met your expectations and understand how disappointing it can be when you don’t notice the improvement you were hoping for, especially after purchasing multiple units.
We appreciate you sharing your experience, and we will be sure to pass your feedback along to our team. We recommend reviewing the troubleshooting steps available here:
https://support.sharkninja.com/article/HP300-Series-Shark-NeverChange-Air-Purifier-MAX-Troubleshooting-Guide
If the steps in the guide do not resolve your concerns, the link will direct you to our Customer Support team, who will be happy to assist you further.
Kind regards,
Shark Home US
Thank you for taking the time to leave your feedback.
We’re sorry to hear that the air purifiers have not met your expectations and understand how disappointing it can be when you don’t notice the improvement you were hoping for, especially after purchasing multiple units.
We appreciate you sharing your experience, and we will be sure to pass your feedback along to our team. We recommend reviewing the troubleshooting steps available here:
https://support.sharkninja.com/article/HP300-Series-Shark-NeverChange-Air-Purifier-MAX-Troubleshooting-Guide
If the steps in the guide do not resolve your concerns, the link will direct you to our Customer Support team, who will be happy to assist you further.
Kind regards,
Shark Home US
Written by a customer while visiting sharkninja.com
Customer Rating
4
Features are working
on January 22, 2026
Posted by: MERMAN
from Albuquerque, NM
Gender:Male
Certainly works as advertised, we are very happy at this point
I would recommend this to a friend!
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
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
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
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
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
5
Works out of the box
on December 20, 2025
Posted by: Ranger77
from Las Vegas
Gender:Male
Works as advertised. I purchased 2 of the largest purifiers . One for the living room which connects to the kitchen. And one for the master bedroom. Easy to setup. Connected the one in the living room. 10 to 15 minutes it reached 100, while cooking dinner it dropped to 81. Recover back to 100 in about 25 minutes after done cooking. I always purchase Ninja products. May cost a little more than the other brands, but they just work.
I would recommend this to a friend!
Written by a customer while visiting sharkninja.com