Table 2. Summarized Amazon Spheres Building design features aiming to enhance the well-being and productivity of their employees: Author.

Design features	Additional detail
Air quality	•Large court. •Plants purify the air. •Sophisticated HVAC system provides natural air every 20 minutes as the spheres façade doesn’t have operable windows to allow natural air.
Biophilic design (Natural light)	•Glare control. •Natural light: The Spheres’ Catalans support 2,643 panes of glass to provide ambient daylight access. •Circadian solution: Lights stimulating daylight. •Largest indoor living wall in the country with around 19m tall and 15m wide and hosts 25k individual plants. The building hosts 40k different varieties of plants (700 plant species). 63
Thermal comfort	•HVAC system. •Shading devices. •Building envelope design: pentagonal panels structure prevents solar heat gain; auto external shading tracks the sun.