Smart Air Blast Mk II Air Purifier

$1,099.99 NZD

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Order in the next to get it between 30 October and 03 November (excl. Rural)

The Blast Mk II is New Zealand’s highest-output purifier, with a CADR of 950m³/hour to clean 130m² in just 21 minutes. Its durable all-metal body is built for 24/7 use, while the H13 HEPA filter captures 99.97% of particles including dust, allergens, and viruses like Covid.

Quiet at only 43dB, it’s ideal for hospitals, offices, classrooms, and other large shared spaces. Add the optional carbon filter for VOC and odour removal.

Freighted nationwide from Christchurch via PBT, Owens, or Mainfreight. Orders arrive safely on a small pallet with full tracking. Delivery is usually 2–4 days locally and 3–5 days elsewhere in NZ after ordering.

For more information, check out our shipping page.

We’ve analysed over 60 air purifiers available in NZ. The results? Smart Air’s purifiers consistently deliver the best value! High clean air performance without inflated markups or gimmicks.

We’re New Zealand’s only authorised distributor for Smart Air, with local stock and support in Christchurch. Need help? You’ll get fast, friendly advice from people who know the products inside out.

Every purchase supports Smart Air, a certified B-Corp and social enterprise that has shipped over 100,000 low-cost purifiers worldwide. Together, we’re proving clean air doesn’t have to cost the earth.

For the Blast Series, Smart Air replaced 50L of plastic packaging with recyclable cardboard. The filters also use lightweight paper frames instead of heavy metal, reducing material use and cutting transport emissions by lowering weight. Combined with their durable all-metal build designed for years of use, the Blast units deliver clean air with a lighter footprint.

👉 Learn more about Smart Air’s sustainability efforts here

Downloads:
Blast & Blast Mini Instruction Manual (pdf)
Blast Product Sheet (pdf)

Frontal view of Smart Air Blast Mk II Air Purifier on white background

Smart Air Blast Mk II Air Purifier

$1,099.99 NZD

$1,099.99 NZD

Details & Specs

Description
Specifications
Package Contents
Shipping & Returns
Filter Lifespan & Replacement

The Blast Mk II is a durable air purifier with all-metal construction for long-lasting 24/7 use. It boasts the highest Clean Air Delivery Rate (CADR) in New Zealand (that we've seen!) at 950m³/hour, capable of purifying a 130m² space in just 21 minutes. Despite its power, it operates quietly at only 43 decibels, making it also the quietest high-capacity purifier available.

This purifier features an H13 HEPA filter that effectively captures 99.97% of tricky to filter 0.3 micron sized particles. It traps dust, allergens, virus-laden droplets including Covid and more. This makes it perfect for large areas such as hospitals, offices, retail, classrooms and more. 

Additionally, it offers an optional Activated Carbon Filter to remove VOCs and odours, ensuring complete air purification. The Blast Mk II is your go-to solution for maintaining a clean and healthy indoor environment, whether in a home, office, or healthcare setting.

CADR (Per hour)
450m³ - 680m³ - 950m³ (low - med - high)

Noise Levels
29dB - 37dB - 43dB (low - med - high)

Power Usage
48W - 81W - 118W (low - med - high)

Recommended Space
Up to 130m²

Power Supply
220-240V / 50-60Hz

Dimensions (L x W x H)
57.5cm x 33cm x 123cm

Net Weight
31.25kg

Blast Mk II Air Purifier
H13 HEPA Filter
Pre-Filter
Power Cable
Instruction Manual

The Blast Mini & Blast are freighted nationwide from our Christchurch warehouse via PBT, Owens, or Mainfreight. Unlike our smaller purifiers, these ship on a small pallet to ensure safe arrival.

  • Christchurch area: Delivery typically takes 2–4 business days after ordering.
  • Rest of NZ: Delivery usually takes 3–5 business days after ordering.

For more details, please see our Shipping Page

Tracking: A full tracking link will be provided for all orders once your shipment is booked with the freight company.

Warranty & Returns

All products include a 1-year manufacturer’s warranty, plus full protection under the Consumer Guarantees Act (1993). We also offer a 14-day change of mind return policy if items are unopened and in original condition.

For more information please see our Returns & Exchanges Policy.

For returns or warranty support please contact: returns@snapair.co.nz

Expected HEPA lifespan: 
10200 hours or 42 months.

Learn more about when to replace your filters here.

Replacement Filters:

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Allergies

Large H13 HEPA filter and a powerful CADR quickly trap pollen, dust mites and mould spores - reducing sneezing, itchy eyes, and other allergy symptoms in even large spaces.

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Asthma

The Blast delivers strong, consistent airflow through genuine H13 HEPA filtration. No ionisers or ozone - just safe, effective clean air for sensitive lungs.

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Dust & Dust Mites

Super high CADR ensures fast air changes across large rooms, capturing dust and mite allergens before they settle. The oversized HEPA filter holds more, lasting longer than competitors.

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Mould

While purifiers can’t remove mould at the source, the Blast's high-output H13 HEPA filter captures airborne spores, ideal for those with mould sensitivities.

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Pets

From pet dander to odours, the Blast's genuine HEPA filter captures fine hair and dander, while the optional activated carbon filter absorbs smells for a fresher home.

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Smoke

Woodburners and urban air bring fine particles that linger indoors. The Blast's massive CADR plus optional carbon filter help remove both smoky particles and odours.

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Viruses

H13 HEPA filter captures airborne viruses, including COVID-19. With its high CADR, the Blast delivers more air changes per hour, even in large office spaces, clinics or classrooms - reducing the time viruses stay suspended in the air.

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Smells & VOCs

Optional carbon filter absorbs odours and gases like formaldehyde (from furniture/renovations) and nitrogen dioxide (from cooking or traffic), keeping air fresher and safer.

What the Experts Say

House Fresh

"These are commercial units designed to be used in high traffic places used by hundreds of people like schools, offices, concert venues or gyms. For these use cases the quiet performance, simplicity, durability and long filter life of the Blast and the Blast Mini will be a significant benefit."

"For those who need to clean the air in huge spaces where sound matters, there's nothing else on the market that comes close to what Smart Air has created."

Housefresh Review Video

What Makes the Blast Different?

01. No Ionisers

Ionisers/negative ions can create ozone, a lung irritant that can make asthma and allergy symptoms worse. They also inflate CADR readings, giving a misleading picture of performance. The Blast Mini skips the gimmicks - just powerful, proven H13 HEPA and optional carbon filtration for safe, reliable clean air.

02. Huge HEPA Filtration

The Blast’s H13 HEPA filter boasts a massive 14.85m² of surface area - providing exceptionally high capacity to trap 99.97% of airborne particles. The larger surface not only boosts efficiency, but also extends lifespan, delivering consistent clean air for longer.

03. Unmatched Clean Air

With a CADR of 950m³/hour, the Blast delivers more clean air than any purifier we’ve found in New Zealand. It refreshes a 130m² space in just 21 minutes - perfect for open-plan living, offices, clinics, and classrooms.

04. Quiet Yet Powerful

Despite its industrial strength, the Blast operates at just 43dB on max - quieter than many smaller units. That means powerful purification without disrupting work, study, or patient care.

05. Durable, Sustainable Design

With an all-metal body, the Blast is made to last longer than plastic alternatives and is more sustainable too. Built on smooth-rolling wheels, it’s easy to move between rooms or across larger spaces, combining industrial durability with everyday practicality.

06. Packed Carbon Filtration (Optional)

The Blast’s optional carbon filter contains 1.7kg of activated carbon pellets - one of the largest quantities in any purifier. This huge capacity makes it highly effective at removing VOCs such as formaldehyde and odours from paints, adhesives, new furniture, or heavy-use spaces.

07. Backed by Data, Not Hype

While many brands inflate coverage claims, Smart Air publishes real CADR and noise data. Independent testing shows the Blast is both the fastest and quietest large-capacity purifier in its class.

Customer Reviews

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David H.
Great unit, nice and quiet for our retail store.

Awesome help from the team to figure out the right option for us, very happy with the customer service. Our unit arrived quickly, and the whole process has been very positive.

Great to hear the Blast is working in your store, especially on the noise front! Happy we could help you land on the right option :)

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Billy S.
Smart air blast mk11

It’s awesome, made a difference from day1, with 2 in my family with allergies that seam to be gone over night and cold and flu symptoms don’t go through the house as they use to.we love it best buy 2023

Blast FAQs

The carbon filter is optional. To keep costs down for users who only need particle removal (allergens, viruses, dust), the Blast Mk II comes standard with its oversized H13 HEPA filter. If you want protection from VOCs and odours, such as during renovations, with new furniture, or in commercial spaces - the optional carbon filter contains 1.7 kg of pellets, one of the largest on the market, for powerful absorption.

No. Many purifiers add cheap sensors that look smart but often misread pollution levels and shut off too soon. The Blast is built for reliability, with three manual fan speeds you control. Most users run it whenever people are present, or continuously in larger spaces. For accurate readings, pair it with a dedicated air quality monitor.

HEPA filter: Expect around 42 months of life at 8 hours/day in NZ conditions. With its 14.85 m² surface area, the HEPA filter holds far more than typical models before needing replacement. Replace if it turns grey/black or airflow drops noticeably.


Carbon filter: Lifespan depends on odour/VOC levels. Do the “smell test” - if it develops a metallic/acidic smell, it’s saturated and needs replacing.

Yes. H13 HEPA captures 99.97% of particles at 0.3 µm, but is also highly effective below that size. Thanks to Brownian Motion, ultrafine particles as small as 0.01 µm - including viruses like Covid - are captured by the filter fibres. With its high CADR of 950 m³/h, the Blast delivers more air changes per hour across large spaces, reducing the time viruses remain airborne.

Yes. Set your preferred fan speed, and the Blast remembers it. When power is restored via a smart plug, timer, or wall switch, it restarts at the same setting. No Wi-Fi, apps, or extra setup needed.

At NZ’s average $0.25/kWh, continuous running costs are:

  • Low: ~$0.41/day
  • Medium: ~$0.66/day
  • High: ~$1.03/day

Despite its size and power, the Blast is extremely quiet. Even on its highest setting, it runs at just 43 dB - quieter than many smaller purifiers. This makes it suitable for offices, clinics, classrooms, and other environments where low noise is important.

With a CADR of 950 m³/hour, the Blast can refresh a 130 m² space in just 21 minutes (1 air change). It’s the highest-output purifier we’ve found in New Zealand, ideal for hospitals, offices, classrooms, and large open-plan homes.

The Blast ships via freight on a small pallet from Christchurch, with full tracking provided. Delivery is usually 2–4 business days locally and 3–5 business days elsewhere in NZ after ordering.

Yes. The Blast comes with a 1-year manufacturer’s warranty, plus full coverage under the Consumer Guarantees Act (1993). Its all-metal build and simple design mean issues are rare, but if you ever need support, you’re covered locally.

Clean Air for the Biggest Spaces

From hospitals to open-plan homes, the Blast delivers New Zealand’s highest CADR - purifying 130m² in just 21 minutes while staying whisper-quiet at 43dB

Order the Blast Mk II Today