Polluted indoor air / Green Building & Sustainable Home Renovation Information & Advice

...airly good condition should provide enough of an air barrier to contain radon below it. A contractor will drill two small test holes in the concrete floor on opposite sides of the basement, then install a vacuum in one and measure air flow with the other. If there is sufficient air movement below the slab, then a radon...

...air than humid air. If you have a mould problem, clean it with detergent. But mould will always come back unless you address the issue that caused it. See our pages on ventilation and air exchangers for more information on home humidity. Harmful VOCs Volatile organic compounds form a large part of household chemical po...