In making the GC MultiGas, IQAir set out to design the world`s most effective compact room air purifier for removal of gaseous particles and VOC`s. To accomplish this, IQAir engineers relied on a cartridge design-just like a professional gas mask. In fact, the GC MultiGas packs the removal power of more than 100 gas masks. That`s what separates it from the competition. The result is a level of protection that other are purifiers simply cannot achieve. The GC MultiGas also features HyperHEPA filtration to filter 99.5% of particles down to 0.003 microns, the world`s smallest particles. The GC MultiGas is ideal for individuals with MCS and removes a wide range of Ultrafine compounds-in addition to particulates including viruses, traffic pollution and tobacco smoke. It`s also an excellent those suffering from allergies, asthma and other respiratory or immunodeficiency conditions. The GC MultiGas is constructed with the highest quality, non off-gassing ABS plastics. And with a handy remote, your GC MultiGas is easy to control from almost anywhere.