Most air purifier companies give 'standard' numbers for how long their HEPA filters last. Smart Air also provides it for our DIY, Sqair and Blast air purifiers. However, we hate giving “standard” ...

If you’re not thinking about, it’s easy to overlook. But if you hone your eye, you’ll start seeing how even moderate levels of pollution change the sky around us. Here are some tips with picture...

MERV filters are a type of air filter that are rated to a common standard - the MERV standard. 'MERV' is an abbreviation for Minimum Efficiency Reporting Value. This means the minimum percentage of pa...

It may seem like a smart solution to install HEPA filters into the centralized HVAC air system your space. However, HEPA filters have a high resistance and therefore require a strong fan to blow air t...

Even in a room with the doors and windows closed, our tests found that particulate levels increase very quickly after you turn off your purifier. Even though we can't see it, dirty air is entering our...

The Blast and Blast Mini air purifiers have been designed to have a very large air outlet. That means the air coming out of the purifiers can spread out over a large area, lowering noise levels. To vi...

CADR stands for 'clean air delivery rate'. It is an industry standard test that can be used to compare the performance of different air purifiers. It allows for a standard test to measure the effectiv...

CADR or 'clean air delivery rate' of an air purifier is typically measured using one of two standards: the AHAM standard in the US, or the GB 18801-2015 standard in China.   The AHAM standard measure...

CFM or 'cfm' stands for 'cubic feet per minute' and is a measurement of the airflow passing through an air purifier or air filter. Smart Air provides airflow and CADR measurements for all our purifier...

Scientists have actually made people wear N95 masks and measured their blood oxygen. Data shows even during moderate exercise, randomized studies have found no evidence that N95 masks decrease oxygen ...