PuroAir HEPA 14 Air Purifier Review 2026 — All 4 Models Tested

The PuroAir 240 leads PuroAir's lineup with a CADR of 183 CFM (dust) / 181 CFM (smoke) / 204 CFM (pollen) — all AHAM verified, not marketing estimates. At H14 grade, it captures 99.99% of 0.1-micron particles, exceeding the 99.97%/0.3-micron standard True HEPA benchmark. Independent testing by HouseFresh confirmed CADR claims but found real-world effective coverage of ~500 sq ft at 4 ACH, not the advertised 1,000. The 22 dB sleep mode is genuinely quiet — comparable to white noise — and the 52 dB high setting is audible but not disruptive. No smart features means no app distractions, but also no auto mode or scheduling. Annual filter cost ~$40. For allergen sufferers and households wanting medical-adjacent filtration at a consumer price, the 240 is the sweet spot in the entire air purifier market at this price tier.

The PuroAir 400 extends H14 filtration to genuinely larger spaces with a higher CADR than the 240 — approximately 280 CFM (dust), putting it in the range of the Levoit Core 600S on raw filtration throughput. It retains HEPA 14 (H14) grade, giving it the same 99.99%/0.1-micron advantage over standard True HEPA. The trade-off: no smart features at the $249.99 price point, while competitors like the Levoit Core 600S ($279.99) offer AHAM Verifide certification, 410 CFM CADR, app control, and PM2.5 sensors. The 400 wins on filtration grade; Levoit wins on features and raw CADR. Choose the 400 if H14 filtration is the priority — wildfire smoke, severe allergies, respiratory conditions. Choose the 600S if you want the highest CADR and smart controls for a large room.

The 130i Smart brings app connectivity to PuroAir's H14 lineup at $129.99 — the most affordable HEPA 14 smart purifier available. WiFi setup pairs with a mobile app for scheduling, real-time PM2.5 monitoring, and auto mode that adjusts fan speed based on detected air quality. CADR is approximately 130 CFM (dust), suitable for rooms up to 350 sq ft at 4 ACH. Compared to the Levoit Core 400S ($219.99), the 130i Smart offers superior filtration grade (H14 vs H13) but significantly lower CADR (130 vs 240 CFM) and a less mature app ecosystem. For a dedicated bedroom where filtration grade matters more than throughput — and where you want scheduling and air quality tracking — the 130i Smart is well-positioned. For open areas where CADR is the priority, the Levoit 400S wins despite the lower filter grade.

The PuroAir 100i Smart is the brand's newest and most affordable entry point at $119.99, with WiFi, app control, and a 3-layer CarbonTech filter. Unlike the 240, 400, and 130i, the 100i Smart uses H13 HEPA (99.97% at 0.3 microns) rather than HEPA 14 — a meaningful spec step-down. CADR is approximately 100 CFM, suited to rooms under 300 sq ft. At this price, the Levoit Core 300S ($99–$120) is the primary competitor: comparable H13 HEPA, 153 CFM CADR (higher), and the well-regarded VeSync app ecosystem. The 100i Smart makes sense if you're committed to the PuroAir ecosystem or want PuroAir's CarbonTech filter specifically. For most buyers, the Levoit 300S offers slightly better CADR at the same or lower price.

The PuroAir 240 uses HEPA-14 filtration, which certifies to 99.99% capture of particles down to 0.1 microns — a finer threshold than the 0.3-micron standard of HEPA-13. In practical terms, HEPA-14 captures a higher proportion of ultrafine smoke, VOC-laden particles, and viral aerosols that can slip past standard HEPA filters. The 1,115 sq ft coverage rating is unusually large for a single residential unit; most competing air purifiers in this price class top out at 400-600 sq ft. An activated carbon stage runs alongside the HEPA layer, handling odors and VOCs from cooking, pets, or off-gassing furniture. The real-time air quality sensor adjusts fan speed automatically rather than requiring manual monitoring. The ownership friction: PuroAir replacement filters cost more than Levoit or Coway equivalents and are less stocked locally — order before your current filter reaches end-of-life to avoid a gap in coverage. The highest fan setting is louder than the advertised dB figure suggests.