Indoor air quality can be more contaminated than its outdoor counterpart, especially if your entertainment center is fueled by coal. Breathe easier with today's Groupon: for $249, you get a UV-light air-purifying system from Eco Friendly Services (a $699 value). This Groupon is valid for homes within a 50-mile radius of the 94612 zip code.
Eco Friendly Services' allergen assassins can reduce airborne assailants by installing germicidal ultraviolet lights in your home's ductwork over the course of one to two hours. The Silent Light air-purification system treats up to 2,000 square feet, blasting bacteria, putting viruses in a vice grip, and stripping dust mites of their bottles of sneezing powder. Safe for people and pets, this brave bulb stands sentry in a heating or air-conditioning duct to zap 93% or more of the pathogens that dare cross its path.