We like to think of our homes as a safe haven, a place where we have control over our environment and where we can protect ourselves from the toxins and pollutants that come with modern living. But unfortunately, there are a host of unseen, airborne pollutants that are common to our dwellings’ interiors as well. From off-gassing furniture to improperly ventilated heating systems and mold growing in the basement or bathroom, click through for the lowdown on six common indoor air pollutants and some handy resources for testing for them and eliminating them from your home.