SmartAir QT3 Travel Air Purifier — H11 HEPA, USB-C, Battery Powered | AU

The SmartAir QT3 is a 720g portable HEPA air purifier built for allergy sufferers on the move — planes, hotels, cars, and shared workspaces. USB-C rechargeable, ozone-free, ioniser-free.

Allergy relief benefits

• H11 HEPA filtration captures ≥95% of airborne dust mite debris, pollen, pet dander and mould spores at 0.3μm
• Personal clean-air zone around your breathing space — helpful when you can't control the room's air quality
• Ozone-free and ioniser-free — no irritant by-products for sensitive airways
• Quiet 29 dB on low — designed to run overnight beside the bed without disturbing sleep
• USB-C battery power keeps filtered air with you in hotels, planes and cars where allergen exposure is unpredictable
• Sealed HEPA filtration — captured particles stay captured, not recirculated back into your breathing zone
• Filter replacement indicator auto-tracks runtime so filtration performance stays consistent

Key features and specifications

• Filter grade: EN 1822 H11 HEPA — captures ≥95% of airborne particles at MPPS
• CADR: 37 m³/h (high speed)
• Effective range: up to 1.2 m / 4 ft from the unit
• Battery: 2000 mAh lithium-ion, USB-C rechargeable
• Runtime: 4 hours (low) / 3 hours (mid) / 2 hours (high)
• Recharge time: ~3 hours via USB-C; runs while charging
• Fan speeds: 3
• Noise level: 29 / 34 / 44.5 dB (low / mid / high)
• Power consumption: 9 W (high)
• Power supply: 5V DC via USB-C
• HEPA filter lifespan: 800 hours (~6 months at 4 hrs/day)
• Filter replacement indicator (auto-tracking based on runtime)
• Dimensions: 150 × 145 × 180 mm
• Weight: 720 g (1.375 lb)
• Colour: white
• Certifications: CE, EMC, RoHS, C-mark, GB 4706.1-2005, GB 4706.27-2008
• Warranty: 1 year limited (Smart Air)
• Ozone-free, ioniser-free — no chemical or electrical purification stages

What's in the box

• 1 × QT3 Air Purifier (with battery)
• 1 × H11 HEPA Filter (pre-installed)
• 1 × USB-C charger cable
• 2 × side strips
• 1 × Instruction Manual

FAQs

Who is the QT3 designed for? Allergy sufferers who travel, commute, or work in shared spaces where they can't control the air quality — frequent flyers, hotel-stayers, road-trippers with pets, hot-desk workers, and anyone exposed to unpredictable allergens away from home. The QT3 creates a personal HEPA-filtered breathing zone around your immediate space (~1.2 m radius) using USB-C power, so you can maintain consistent filtration wherever you sit. Best for travel, car, and desk use — not a whole-room purifier.

Can I take it on a plane? Check with the airline first but generally, yes. The 2000 mAh / ~7.4 Wh battery is well within most airline carry-on lithium-ion limits (typically 100 Wh). Pack it in your carry-on, not checked luggage. To run it during the flight, plug into the seatback USB (most international flights have USB-C or USB-A; bring the right cable) or run it on battery. Check your specific airline's policy on running personal electronics during the flight — some airlines restrict device use during takeoff and landing.

Does it work in hotel rooms? Yes — this is one of its most common use cases. Place it on the bedside table at face height; plug into a USB-C charger to run overnight. Particularly useful in older hotels with carpet and dated AC systems, in rooms where the previous guest smoked, or in rooms where construction or cleaning chemicals have left residual VOCs (note: the QT3 is HEPA only, so it filters particulates rather than VOCs — for odours, the larger Sqair with carbon filter is the better choice).

Will it work in my car? Yes — the QT3 is designed for car use. Sit it on the centre console or passenger seat; plug into the car's USB-A or USB-C outlet (you may need a USB-A to USB-C adapter cable for older cars). Particularly useful for road trips with pets, in smoke-affected regions during bushfire season, or during heavy pollen seasons. The 4 ft / 1.2 m effective range covers the driver's face from a console position.

Is it really effective for allergies? The H11 HEPA filter captures airborne dust, pollen, and pet dander to the EN 1822 H11 specification (≥95% at MPPS). For travellers who react to hotel-room dust or pet dander in shared spaces, having a HEPA-filtered breathing zone makes a real difference compared to no filtration at all. We don't claim it treats allergies — that's a medical question — but the construction is what most allergy-conscious travellers are after.

How loud is it during a flight? 29 dB on low — quieter than the cabin background noise on most flights, so it's not noticeable to seatmates. 44.5 dB on high — about the level of a quiet office. Most travellers run it on low or mid in confined spaces.

How long does the battery last? 4 hours on low / 3 hours on mid / 2 hours on high. For long-haul flights, plug into the seatback USB or a portable battery bank to run continuously. Recharge time is about 3 hours from empty.

How often do I replace the filter? 800 hours of runtime, or about 6 months at 4 hours of daily use. Heavy travellers may go through filters faster; occasional travellers may stretch them longer. The unit has a built-in filter replacement indicator that auto-tracks runtime. Replacement filters are sold separately.

Does it remove VOCs or odours? No — this is HEPA only, no carbon filter. For VOC removal (smoke, paint, off-gassing furniture, hotel air freshener), look at the Sqair with optional carbon filter. The QT3 is particle filtration only.

Care notes

Replace the H11 filter every ~6 months at 4 hrs/day, or when the indicator signals. Don't wash the HEPA filter — replacement is the only effective restoration. Wipe the cabinet with a dry cloth.