If you are concern about mold growth in your home, then you should check out the Pionair website because they are currently offering free mold test kits. With this kit, you would be able to hopefully get a cursory comparison between the mold growth that exist both on the outside and the inside of your home. To receive the freebie kit, all you have to do is fill out the online request form. So hurry up and fill out the form for some free stuff from Pionair Air Treating System maker.