MECHANICAL FILTERS
(for example, fan-driven HEPA filters)
These force air through a special mesh that traps particles including allergens like pollen, pet dander and dust mites. They also capture irritant particles like tobacco smoke. The fans in these types of devices produce ozone byproduct and are usually within the acceptable level. Make sure to ask for proof from the manufacturer that their product is within the acceptable level of ozone byproduct.
ELECTRONIC FILTERS
(for example, ion-type cleaners)
These use electrical charges to attract and deposit allergens and irritants. If the device contains collecting plates, the particles are captured within the system. The ion-chargers in these types of filters produce ozone byproduct, more than fans in mechanical filters but may still be within the acceptable level. Make sure to ask for proof from the manufacturer that their product is within the acceptable level of ozone byproduct.
HYBRID FILTERS
These contain the elements of both mechanical and electronic filters.Gas phase filters – These remove odors and non-particulate pollution like cooking gas, gasses given off by paint or building materials, and perfume. They cannot remove allergenic particles.
Hang it in your
wardrobe, toilets, and
even pet litter areas too!