HEPA Filter for Smart Air Blast

Replacement H13 HEPA filter for the Smart Air Blast air purifier. Captures airborne dust, pollen, pet dander and fine particles such as PM2.5. Includes one full-size filter with 14.85 m² of pleated filter media. Carbon filter sold separately.

$329.99 NZD

In stock - Ready to be shipped

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Order in the next to get it between 17 November and 18 November (excl. Rural)

Replacement H13 HEPA filter for the Smart Air Blast Air Purifier.

HEPA filters capture particulate pollution like PM2.5, dust and pollen. HEPA filters are the most important part of any air purifier, and the key to clean air, so make sure to replace them regularly. The Blast's HEPA can give you up to 10200 hours or 42 months of clean air.

Now friendlier to the environment with a cardboard frame!

Filter grade:
H13 (99.97% capture rate per pass)
Filter media area:
14.85 m² per filter

Receive your filter(s) in 1–2 business days. Shipping is free on orders over $100, so if you haven't reached that, grab more and save! Every order is tracked from our Christchurch warehouse to your door.

Rural delivery surcharges may apply. For more information, check out our shipping page.

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.

If you need help, we’re here in New Zealand with responsive, friendly support. No overseas call centres, just local assistance you can count on.

All Smart Air filters are packaged simply and sustainably. We use recyclable cardboard wherever possible, and plastic is only included where needed to protect the filter during shipping and storage. This keeps waste to a minimum while ensuring your filters arrive in perfect condition.

👉 Learn more about Smart Air’s sustainability efforts here

Replacement H13 HEPA filter for the Smart Air Blast, front view

HEPA Filter for Smart Air Blast

$329.99 NZD

$329.99 NZD

Specifications
Replacement & Care
Shipping & Returns

Filter Type: HEPA particle filter

Filter Grade: H13 (99.97% capture rate per pass)

Filter Media Area: 14.85m²

Filter Material: PP+PET (fibreglass free) with cardboard frame

Dimensions: 570 mm (L) × 70 mm (D) × 1170 mm (H)

Pack Quantity: 1

Compatible Purifier: Blast Mk II

How long will your filter last?

Around 10,200 operating hours, equivalent to about 42 months at 8 hours a day. This is a guide, rather than a fixed replacement date. Your filter may last longer or need replacing sooner, depending on pollution levels and how you use your purifier.

How do I know when to replace it?

The Blast does not have a filter replacement indicator light, so check the filter periodically. If the media has become dark grey or black across most of its surface, or airflow remains noticeably reduced after cleaning the pre-filter and checking that the air inlets and outlets are clear, it may be time for a replacement.

A little discolouration alone does not mean the filter needs changing. Consider its overall condition and performance alongside your usage. Do not wash or vacuum the HEPA filter.

What affects filter life?

Filter life depends on how much airborne pollution passes through and collects in the filter. Daily running time, fan speed, pollution levels and the amount of filter media all play a part. A purifier moving less air may take longer to load its filter, but it also cleans less air over that time. A longer replacement interval alone doesn’t mean better performance or value.

Looking after your HEPA filter

Do not wash your HEPA filter. Follow your purifier’s manual for care and replacement instructions.

Fitting a replacement

Switch off and unplug your purifier before replacing its filters. Remove any protective packaging from the new filter and follow your model’s manual for the correct position and orientation.

Orders are shipped daily from our Christchurch warehouse.

  • Dispatch: Orders placed before 11:30am are normally dispatched the same business day.
  • Delivery timeframe: Most orders arrive within 1–2 business days (Mon–Fri) after dispatch. Rural delivery may take an extra day or two.
  • Tracking: Every order is sent with a full tracking link so you can follow its progress to your door.
  • Cost: Shipping is free on orders over $100.

For more information please see our Shipping Page

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

Small fibres. Big difference.

Made for the particles you live with.

Dust, pollen and fine particles share our indoor air. Your HEPA filter traps airborne particles as air passes through a dense network of fibres.

Pleats fold a large filtering surface into a compact space. Paired with the purifier's airflow, that surface helps clean the air as it circulates through your room.

14.85 m²of pleated filter media
per filter
Replacement H13 HEPA filter for the Smart Air Blast, front view

What matters in your home?

Choose a concern to explore ↓

Allergies

Helps capture airborne pollen, pet dander and other particles that can trigger allergies. It complements cleaning and managing the source of allergens.

Asthma

HEPA filtration can help reduce airborne particles such as dust and smoke that may trigger asthma. It supports cleaner indoor air; it does not replace asthma treatment or an action plan.

Dust & dust mites

Captures airborne dust and particles from dust-mite allergens. It does not remove mites from bedding or dust already settled on surfaces, so regular cleaning still matters.

Mould

Helps capture mould spores floating in the air. It cannot fix damp or remove mould growth, so moisture and the source of mould need attention too.

Pets

Helps trap airborne pet dander and fine particles shed by pets. Pet odours are a separate job for activated carbon.

Smoke

Captures fine airborne particles from smoke, including woodsmoke. HEPA does not remove smoke gases; reducing the source and ventilating when outdoor air is cleaner still matter.

Viruses

Captures airborne particles that can carry viruses as they pass through the filter. Room airflow and ventilation matter too; filtration cannot prevent every infection.

Choosing your air purifier?

The filter is part of the story. Find out how Smart Air Blast Mk II Air Purifier combines filtration and airflow, with room coverage and noise levels to suit your space.

Explore the purifier

FAQs

No. Do not wash your HEPA filter. Follow your purifier’s manual for care instructions and replace the filter when needed.

No. This listing is for replacement filters only. Check the pack quantity in Specifications to see how many filters are included.

HEPA filters capture particles. Activated carbon is used for odours and certain gases. Check the matching filter linked above for compatibility.

Usually not. The Blast has a separate reusable pre-filter that catches larger dust and debris. Clean it according to your purifier’s manual and let it dry completely before refitting. The HEPA filter cannot be washed and should be replaced when needed. This listing includes one HEPA filter only; the pre-filter and optional carbon filter are not included.