In 2003, the Environmental Protection Department launched the Indoor Air Quality (IAQ) Certification Scheme to promote and commend good IAQ management practice. Offices or public places served by mechanical ventilation and air conditioning (MVAC) systems (excluding window-type air-conditioners or split-type air-conditioners) are eligible to join the IAQ Certification Scheme.
All LandsD eligible premises have joined the IAQ Certification Scheme and had their IAQ assessed regularly. We have 17 offices attaining the "Excellent" or "Good" IAQ Class.