Technical Specifications
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Filter Type
Fabric pre-filter 100% polyester, Stretch panel 94% polyamide 6% spandex
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Dimensions(HxWxD)
14.0 x 0.08 x 15.2
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Product Weight
0.15 lb
Total 5 star reviews: 7 Total 4 star reviews: 3 Total 3 star reviews: 1 Total 2 star reviews: 2 Total 1 star reviews: 1
71%would recommend this product
14 reviews
- SMSHERRY M.Verified Buyer2 months agoRated 5 out of 5 starsSimply the BEST
We live in a beautiful place with mountains in our front yard and 3 dirt roads to get to the paved highway. Spring and Fall winds are epic with 45 to 70 mph wind gusts. There is fine powdery dirt in the air. We had two BLUEAIR 211's in our house for 8 years and they handled the tough conditions. I wanted something that had a smaller foot print so tried out another brand that makes vacuum cleaners I like. I bought a large one for the great room and a smaller one for the bedroom. They were DEAD in 3 months, even the one that said "no-change filter." I immediately went back to BLUE AIR and it was like coming home. Immediately the air in the whole house got better and the Blue Signature is perfect for the Great Room and the 311 in the bedroom is the right size. I LOVE BLUEAIR and can say that we have given it the Big Test in a stressful environment and this brand delivers on all of its promises. The more subtle, neutral colors for the pre-filters are much appreciated. The washable pre-filter makes a very big difference. Saturday is wash day and I pop the second pre-filter on while the used one is in the wash.
BUBlueair UK2 months agoThank you so much for sharing this incredible experience with your Blue Signature. It means a lot to hear how well it’s performing in such demanding conditions and that it truly feels like coming home. We’re glad the design, washable pre-filters, and performance are making a difference in your space. We appreciate your loyalty and are thrilled to be part of your home.
- TLTimothy L.Verified Buyer4 minutes agoRated 5 out of 5 starsVery sensitive
Responds quickly to change in air quality - very quiet over all
- TIThomas I.Verified Buyer2 days agoRated 2 out of 5 starsNot what I was told by customer support
Was Told this model contained both VOC and particle sensors. It did not, I returned it. The only reasonably sized model in the medium sized one and it lacks the full suite of particle sensors.
BUBlueair UKYesterdayThank you for sharing your feedback. We’re sorry to hear about the confusion regarding the sensors and that the product did not meet your expectations. We appreciate you taking the time to let us know, and we’ll make sure your comments are passed along to our product team for review. Your input helps us improve and provide clearer information moving forward.
- TMTom M.Verified Buyer2 days agoRated 3 out of 5 starsodor
Doesn't remove pet odor or some other odors.
BUBlueair UKYesterdayWe truly appreciate your feedback on the Blue Signature Large Pre-Filter. We’re sorry it hasn’t met your expectations in addressing pet and other odors. Your insights are valuable, and we’ll share them with our product team to help guide future improvements. Our support team will be reaching out to assist you with the next steps.
- CDCalista D.Verified Buyer1 month agoRated 5 out of 5 starsLove this air filter
We really love our blueair air filter. We have a very large open plan kitchen, dining room & lounge. The purifier kicks in any time we are cooking or when we open our doors to the garden and is clearly doing a fantastic job at cleaning our air. It is great that pre-filters and filters are easy to purchase and delivered quickly.