Airthings
Airthings Renew Smart Air Purifier: Detailed Spec Analysis
The Airthings Renew stands out as one of the smartest air purifiers in its class, pairing medical-grade H13 HEPA filtration with built-in PM sensors and full app control , all while sipping just 2.6W of power. It's purpose-built for bedrooms and baby rooms where whisper-quiet operation and clean air matter most, and its 525 sq ft coverage handles medium-sized spaces with ease.
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Last updated: . Based on our analysis of 865+ air purifiers.
What Sets It Apart
Key specification highlights based on our analysis.
H13 HEPA Filtration
Medical-grade H13 HEPA filter captures 99.95%+ of particles at 0.3 microns
4-Stage Filtration
Comprehensive 4-stage filtration system for thorough air cleaning
23 dB Whisper Quiet
Ultra-quiet at lowest setting (301 out of 932 purifiers are under 30 dB)
Smart WiFi Connected
App control and monitoring (125 out of 932 purifiers have WiFi)
Why We Recommend It
- 01.
H13 HEPA filtration with 4-stage system (pre-filter, HEPA, charcoal, PM sensor feedback) delivers thorough air cleaning for allergies, dust, and pet dander
- 02.
23 dB at lowest speed is virtually inaudible , quieter than a whisper , making it ideal for bedrooms and baby rooms
- 03.
2.6W power draw with Energy Star certification means negligible electricity costs even running 24/7
- 04.
Built-in particulate matter sensor enables true auto mode that responds to real-time air quality changes
- 05.
Child lock feature adds safety for households with curious toddlers
Considerations
- 01.
525 sq ft coverage is adequate for medium rooms but won't handle whole-house purification , larger open-plan spaces may need a second unit
- 02.
At 11.9 lbs and 16.3 inches wide, it's portable but not ultra-compact , plan your nightstand or floor placement accordingly
- 03.
Maximum noise level not published , higher fan speeds may be noticeably louder than the whisper-quiet low setting
Technical Specifications
| Feature | Specification |
|---|---|
| Purifier Type | Hybrid |
| Coverage Area | 525 sq ft |
| Filtration Stages | 4-stage |
| Filter Type | Hepa h13 |
| HEPA Grade | H13 |
| Carbon Filter | Yes |
| Pre-Filter | Yes |
| Noise (Min) | 23 dB |
| Wattage | 2.6W |
| Energy Star | Yes |
| WiFi | Yes |
| App Control | Yes |
| Auto Mode | Yes |
| Sleep Mode | Yes |
| Air Quality Indicator | Yes |
| Height | 16.1" |
| Width | 16.3" |
| Depth | 6.7" |
| Weight | 11.9 lbs |
| Washable Filter | Yes |
| Child Lock | Yes |
| Portable Handle | Yes |
| Certifications | CE Certified, ETL Certified, Energy Star Certified, FCC Certified, RoHS Certified |
Filtration Technology
The Airthings Renew uses a 4-stage filtration system anchored by a medical-grade H13 HEPA filter that captures 99.95%+ of airborne particles at 0.3 microns, including pollen, dust mites, mold spores, and pet dander. A washable pre-filter handles larger debris like pet hair and dust, while the activated charcoal filter absorbs VOCs, smoke, cooking odors, and pet smells.
This multi-stage approach is more comprehensive than many competitors in its category that rely on basic HEPA and skip dedicated carbon filtration.
Noise & Performance
At just 23 dB on the lowest setting, the Renew is virtually inaudible , quieter than a library and well within the range for undisturbed sleep in bedrooms and baby rooms. It covers up to 525 sq ft, making it well-suited for medium bedrooms, nurseries, and home offices.
The built-in PM sensor feeds real-time data to the auto mode, which ramps fan speed up or down based on detected air quality , meaning you get responsive performance without manual adjustment.
Smart Features & Controls
Full WiFi connectivity pairs with the Airthings app for remote monitoring, scheduling, and control from anywhere , a feature only about 13% of purifiers on the market offer. Auto mode uses the onboard air quality sensor to dynamically adjust fan speed, while sleep mode reduces noise and dims display lights for nighttime running.
The air quality indicator gives at-a-glance feedback, and the child lock prevents unintended setting changes , a thoughtful addition for nursery use.
Filter Maintenance
The pre-filter is washable, which extends the life of the main filters and reduces ongoing additions. The H13 HEPA and charcoal filters will need periodic replacement , typically every 6 to 12 months depending on usage and air quality conditions.
Airthings provides filter change indicators through the app, so you'll know exactly when maintenance is due rather than guessing.
Who Is This Air Purifier For?
Ideal For
- ✓ Parents with babies or young children , the 23 dB sleep mode keeps air clean without disturbing naps, and the child lock prevents little hands from changing settings
- ✓ Allergy and asthma sufferers , H13 HEPA captures 99.95%+ of pollen, dust mites, and pet dander across 4 filtration stages
- ✓ Pet owners in medium-sized rooms , charcoal filter neutralizes pet odors while HEPA traps dander and fine hair particles
- ✓ Smart home enthusiasts , WiFi app control, auto mode with real-time air quality monitoring, and sleep mode scheduling integrate into connected home routines
Not Ideal For
- ✕ Whole-house coverage seekers , at 525 sq ft, you'll need multiple units for large homes or open floor plans
- ✕ practical buyers who don't need smart features , Airthings commands a premium for its app ecosystem and sensors; simpler purifiers cover the same area for less
- ✕ Users in heavily smoke-damaged environments , while the carbon filter handles moderate smoke and odors, dedicated smoke purifiers with thicker activated carbon beds perform better for heavy exposure
Setup is straightforward , remove the packaging, install the pre-loaded filters, plug in the unit, and connect it to WiFi through the Airthings app. The 11.9 lb weight makes it easy to position in a bedroom or baby room and move between rooms as needed.
Run the purifier on a higher fan speed for the first few hours to clear any initial manufacturing odors before switching to auto or sleep mode for the baby room
Place the unit at least a foot from walls for optimal air circulation and accurate sensor readings
Airthings typically offers a limited warranty on their products , verify current warranty terms and coverage directly with Airthings or the retailer before purchase. The brand is well-established in air quality monitoring with responsive customer support channels.
FAQ
Is the Airthings Renew quiet enough to run in a baby room overnight?
Yes , at 23 dB on the lowest setting, the Renew is quieter than a whisper and virtually inaudible. The dedicated sleep mode further reduces noise and dims display lights, and customer feedback consistently reports babies sleeping more restfully with it running.
How effective is the Airthings Renew for allergies and pet dander?
Very effective. The H13 HEPA filter captures 99.95%+ of particles at 0.3 microns, which includes common allergens like pollen, dust mites, mold spores, and pet dander.
The 4-stage filtration adds a charcoal layer that also neutralizes pet odors. Customers report reduced allergy symptoms in children after using it.
How much does it cost to run the Airthings Renew 24/7?
At just 2.6W power draw with Energy Star certification, running the Renew continuously costs only a few dollars per year in electricity. It's one of the most energy-efficient air purifiers available, making 24/7 operation in bedrooms or baby rooms extremely accessible.
Does the Airthings Renew work with smart home systems and apps?
Yes. The Renew connects via WiFi to the Airthings app, giving you remote control, air quality monitoring, and scheduling from your phone.
The auto mode uses the built-in PM sensor to adjust fan speed automatically based on real-time air quality readings in your room.
How often do the filters need to be replaced on the Airthings Renew?
The pre-filter is washable and reusable, which extends the life of the main filters. The H13 HEPA and charcoal filters typically need replacement every 6-12 months depending on usage.
The app provides filter change notifications so you know exactly when it's time.
Is the child lock on the Airthings Renew reliable for a nursery?
Yes, the child lock feature prevents toddlers and young children from accidentally changing settings or turning off the purifier. Combined with the 11.9 lb weight and stable base, it's designed with nursery safety in mind , parents can set it and trust it stays running in the mode they chose.
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Bottom Line
The Airthings Renew is a premium smart air purifier that excels in bedrooms and baby rooms where quiet operation, clean air, and hands-off control matter most. Its H13 HEPA 4-stage filtration, 23 dB whisper-quiet mode, and full app control make it one of a strong option for-equipped purifiers for parents and allergy sufferers in medium-sized rooms.
If you need whole-house coverage or heavy-duty smoke removal, look at larger dedicated units instead.
Best for parents, allergy sufferers, and pet owners who want smart, whisper-quiet air purification in bedrooms and baby rooms up to 525 sq ft
Consider alternatives if you need whole-house coverage beyond 525 sq ft or heavy-duty smoke and odor removal
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