The technological basis of the NanoBreeze air filter is very similar to that of self-cleaning fabric. It may be helpful to read the explanation of how self-cleaning fabric works.

The filter houses a fluorescent light tube, which emits UVA and blue light. This tube is then wrapped in fiber glass coated with a nano-thin film of titanium dioxide nanoparticles. The light photons are absorbed by the titanium dioxide, which experiences electron excitation. UVA and blue light are chosen because the photons are in the appropriate energy range to excite electrons of the titanium dioxide (i.e. greater than the band gap). The freed (excited) electrons then react with oxygen atoms in the air, breaking their double bond and leaving them with an unpaired electron. Because of the unpaired electron, the oxygen is a powerful free radical, which attacks other molecules within the air (i.e. the harmful gases), breaking them down via oxidation-reduction reactions. The titanium dioxide only serves as a catalyst to the reaction, so it is never used up, making the filter last as long as the light tube does not burn out (life-span of a light tube is estimated to be a year).

But will NanoBreeze solve all our problems?