Smart Air Blast Mk II Air Purifier

The Carbon filter is an optional add-on. In order to keep the Blast as cost effective as possible, it doesn't have a carbon filter included by default. This is also because for most uses such as capturing virus particles in the school or office, the HEPA filter is most important.

However you can add on a Carbon Filter with your order, if you're dealing with VOCs from recent renovations etc then this will be very helpful!

No, the Blast has been designed for simplicity and affordability. While it may seem logical to want your air purifier to activate when it senses poor air quality. Many manufacturers unfortunately add on a cheap inaccurate air quality sensor and then charge you more for what should be a simple product! This means the air purifier may allow unhealthy levels of pollutants in the air.

Instead we recommend running the Blast whenever people are around, or even 24/7 - our air purifiers are designed to last! You can also purchase an accurate standalone air quality monitor from us to better understand your air and how effective the air purifier is.

For the HEPA Filter:
As the filter slowly fills up with pollutants, you'll see it get discoloured from it's original white. Often it will appear grey or black. If you notice the Sqair doesn't seem to be providing as much clean air as before, have a look at the HEPA filter. We provide an estimate of a 42 month lifespan based on 8 hours use per day in NZ.

Carbon Filter:
Because it's very hard to estimate their lifespan, we recommend checking regularly by conducting the smell test. If it has an acidic/metallic smell then the filter is saturated and can no longer absorb VOCs and Odours.

Learn more about both including the smell test by checking out our blog article here.

Yes, the HEPA filter on the Blast can indeed filter out nanoparticles! While some brands claim only their specific air purifiers can capture nanoparticles, this isn't true. Every proper HEPA filter, such as the H13-rated Blast filter, can effectively remove nanoparticles.

You often see HEPA filters rated for 99.97% efficiency against 0.3-micron particles, which are much larger than nanoparticles. Interestingly, 0.3 microns is chosen as the test size because it's actually more challenging to filter than smaller particles due to their size and behavior. Nanoparticles, which can be as small as 0.001 microns, move in random zigzag patterns (Brownian Motion), making them more likely to get trapped in the filter fibers.

So, even though 0.3 microns are larger, HEPA filters can efficiently capture nanoparticles due to this Brownian Motion. This means HEPA filters are highly effective at removing these tiny particles from the air, ensuring nearly 100% filtration.

For more details, you can check out this article from Smart Air