Top quality purifiers often boast of their use of ‘HEPA’ (High Efficiency Particulate Absorber) filters, defined as able to remove 99.97% of particles larger than 0.3 microns (really very small – a single human hair is around 250 times as thick). Less reputable brands may talk of ‘HEPA-like’ filters which is jargon for ‘Not a HEPA filter but you probably won’t know’.
The smaller the particle, the more readily it can get into your lungs and your blood stream, ending up inside your cells throughout your body.
The MobileAir contains two layers of Super HEPA – acting as a barrier to 99.99% of particles as small as 0.1 microns – or 1/10,000 of a mm. Unlike traditional pleated HEPA filters Super HEPA is not manufactured with glues, binders or fibreglass and is ideal for users with chemical sensitivities.
The ONLY way to remove significant quantities of gaseous pollutants is with activated carbon. The source of the carbon, the method used to activate it, the size of particle, and various chemical processes all affect how well the filter will remove different polluting gases from the air.
The MobileAir uses Vocarb - a proprietary blend of carbons especially engineered to have the maximum effect on both nitrogen dioxide (NO₂) , the chief gaseous concern from diesel emissions and the numerous VOC’s (Volatile Organic Compounds) given off by vehicle interiors and which react with N0₂ to form equally hazardous ozone.
Many purifiers claiming to have carbon filters contain just a few grams of a standard carbon. Not only is the exact type of carbon important but these filters work by attracting the gases to their surface, so the more carbon, the better the filter and the longer it will last. MobileAir contains a massive 2 lbs (900 g) of bespoke activated carbon granules, to create the longest lasting, most effective purifier on the road.
In general use the filters in a MobileAir will need replacing after 3 years. However, in the heavily-polluted environment of a new car (yes, sorry) we strongly recommend changing the filters after the first 9 months.
When you purchase replacement filters:
We send you pre-paid packaging for the unit.
You package the unit and arrange a convenient time for our courier to collect.
We recycle the used activated carbon, clean and service your MobileAir, install new filters, and send the unit back to you.
How much does this cost?
The filter replacement service costs £110 (£91.67 + VAT).
Clean air cost of 10p a day over a 3 year filter life.
Plain Air researches and delivers advanced air purification solutions.
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