According to the American Society for Health Care Engineering, nearly half of the specialty hospital projects under construction over the next three years will be behavioral health centers or psychiatric hospitals. As these facilities evolve, a focus on environmental design factors including lighting and HVAC systems is increasingly recognized as supporting patient recovery outcomes.
Best practices for treating patients with mental illness have shifted from custodial care to person-centered recovery, with environmental comfort playing a key role. Lighting design in behavioral health settings must balance safety requirements—including ligature-resistant features that remove hard edges and corners to reduce self-harm opportunities—with therapeutic benefits. Luminaires with polycarbonate lenses and tamper-resistant fasteners discourage damage and weaponization of fixtures. The ability for patients to control lighting intensity supports circadian entrainment through dimmable systems or tunable white and biodynamic lighting features that help preserve normal sleep/wake cycles and maintain hormonal balance. Personal control over room lighting can positively influence mood and support a patient’s feeling of independence.
Physical comfort similarly enhances emotional equilibrium. Studies indicate that extreme temperatures can exacerbate stress and anxiety, while comfortably maintained environments foster calmness and mental clarity. Poor ventilation can lead to buildup of pollutants and allergens, contributing to cognitive fog, lethargy, and potential long-term neurological impacts. Well-ventilated spaces with optimal air quality enhance focus, boost mood, and improve sleep. HVAC equipment in patient areas must be ligature- and tamper-resistant. Strategic placement of MEP equipment away from patient areas helps create quieter environments that promote healing and rest, as excessive noise can hinder recovery.
Offering patients autonomy in their surroundings—including control over lighting and HVAC systems—may help regulate their sleep and reduce stress levels. Federal and The Joint Commission policies about patient safety and security remain imperative drivers for facility design and operations, requiring lighting that is sufficiently robust to support patient and staff safety while providing suitable illumination and comfort.
This article is an AI-assisted summary. All facts and figures are drawn from the original report: https://hconews.com/2025/12/25/best-practices-in-lighting-and-hvac-for-behavioral-health-facilities/