Welcome to the second installment of "Home is where the office is," a special springtime series of product round-up posts celebrating the roughly 20 million members of the American workforce that shuffle to their dens, spare bedrooms, kitchen tables, mom caves, or backyard office pods at least once a week to perform what would otherwise be performed in a soulless office block miles away.

No matter of size or location, home workspaces are usually composed of three basic items: a desk/table, a good lamp, and today's subject, a task/work chair. A long-lasting work chair, especially those of the ergonomic variety, don't always come cheap so when investing in one it's important to ensure that the place that you'll be resting your derriere for hours at a time boasts qualities that aren't just beneficial for your body but for your entire home and the planet as well.

When hunting for a new seating solution for a home office, keep an eye out for Greenguard Certification, an indoor air quality-centric labeling system. Office chairs with Greenguard stamp of approval are made from low-emitting materials that won't offgas and pollute your home workspace. Cradle to Cradle Certification is something else to look for. Not all office chairs achieve Cradle to Cradle's stringent certification criteria but several chairs from two iconic office furnishing manufacturers, Steelcase and Herman Miller, have.

Below you'll find several eco-friendly office chairs that this work-from-homer finds particularly covet-worthy. Most, but not all, are of the wheeled ergonomic variety and boast one or both of the certifications mentioned above. And since price matters, all, in their most basic configurations, retail for under $1,000.

Herman Miller SAYL Task Chair by Yves Behar @ Design Within Reach ($399 - $499)

Emeco Hudson Swivel Armchair @ Nest Living ($920)

Steelcase Think 3D Color Chair @ Steelcase ($749)

Pratt Office Chair @ West Elm ($149)

Knoll Life Chair @ All Modern ($808)

Haworth Zody Chair @ OfficeDesigns.com ($617.35)

Herman Miller Mirra Task Chair @ Design Within Reach ($849)

The opinions expressed by MNN Bloggers and those providing comments are theirs alone, and do not reflect the opinions of MNN.com. While we have reviewed their content to make sure it complies with our Terms and Conditions, MNN is not responsible for the accuracy of any of their information.